VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
N-30D, 1998-12-23
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<PAGE>   1
 
                    TABLE OF CONTENTS
 
<TABLE>
<S>                                               <C>
Letter to Shareholders...........................  1
A Farewell from the Chairman.....................  6
Glossary of Terms................................  7
Performance Results..............................  9
Portfolio of Investments......................... 10
Statement of Assets and Liabilities.............. 17
Statement of Operations.......................... 18
Statement of Changes in Net Assets............... 19
Financial Highlights............................. 20
Notes to Financial Statements.................... 21
Report of Independent Accountants................ 26
Dividend Reinvestment Plan....................... 27
</TABLE>
 
VMO ANR 12/98
<PAGE>   2
 
                             LETTER TO SHAREHOLDERS
 
November 20, 1998
 
Dear Shareholder,
    The past decade has been a
remarkable time for investors.
Together, we've witnessed one of the
greatest bull markets in investment
history, unprecedented growth in mutual
fund investing, and a surge in personal
retirement planning. The coming
millennium promises to hold even more                    [PHOTO]
challenges and opportunities.
    To lead us into this new era of        DENNIS J. MCDONNELL AND DON G. POWELL
investing, we are proud to announce
that Richard F. Powers III has joined
Van Kampen as President and Chief Executive Officer, and will assume the
additional role of Chairman of Van Kampen in 1999. He comes to us from our
parent company, Morgan Stanley Dean Witter & Co., where he served as Executive
Vice President and Director of Marketing. Dick Powers brings 27 years of
experience in the financial services industry, including vast expertise in
product management, strategic planning and brand development. While at Morgan
Stanley Dean Witter, he developed many of the firm's core products and services.
    You'll hear more from Dick Powers in the coming months as he becomes
increasingly involved in matters related to your Trust and joins Dennis
McDonnell in addressing shareholders in future reports. (See Don Powell's
farewell to shareholders on page 6.)
 
ECONOMIC REVIEW

    After two years of solid gains, the U.S. economy began to lose some of its
luster during the reporting period. No longer immune to the global economic
turmoil, the economy retreated from a 5.5 percent annual growth rate in the
first quarter to a tepid 1.8 percent in the second quarter (as measured by gross
domestic product). By the third quarter, however, growth rebounded to a 3.3
percent annual rate.
    A strong dollar was largely responsible for moderating economic growth. As
the Asian financial crisis worsened and spread to other regions, foreign
investors amassed dollar-denominated U.S. Treasury bonds. These purchases sent
the dollar sharply higher, which increased the price of U.S. exports and slashed
the price of imports--resulting in reduced demand for U.S. goods and services
abroad. In light of the reduced demand and global economic problems, corporate
earnings fell, business investment declined, and stock prices plummeted. By the
end of August, the Dow Jones Industrial Average was down 19 percent from its
record high, set in mid-July. Although the stock market has since recovered much
of its losses, consumer confidence has declined and growth in consumer spending
has slowed.
    Concerns about further economic deterioration, weakness in the stock market,
and a potential credit crunch prompted the Federal Reserve Board to cut
short-term interest rates
 
                                                            Continued on page 2
 
                                        1
 
                   

                   
<PAGE>   3
 
0.25 percent in late September. It was the first rate cut in almost three years
and was followed by additional cuts of 0.25 percent in October and November.
Despite these rate cuts, the Fed took care to note that inflation was well
contained.
 
MARKET OVERVIEW

    The volatility in overseas markets and U.S. stocks was a boon to bonds.
Foreign investors bought U.S. Treasury bonds in an attempt to escape the global
turmoil, while domestic investors purchased them to avoid further losses in U.S.
stocks. Because these purchases occurred at a time when the supply of new
Treasury issues was declining, Treasury bond prices soared.
    The Fed rate cuts propelled bond prices even higher. Following the Fed's
first rate cut, the yield on the 30-year Treasury bond, which moves in the
opposite direction of its price, dropped to a record low of 4.72 percent on
October 5. However, subsequent sales of Treasuries by Asian and institutional
investors dampened the rally. As of October 31, the 30-year Treasury bond had a
5.15 percent yield, down 1 percent from a year ago.
    Municipal bond prices followed Treasuries higher, but, as usual, they didn't
gain nearly as much in price. The yield on a typical AAA-rated general
obligation municipal bond fell only 32 basis points to 4.80 percent as of
October 31, from 5.12 percent a year earlier. Earlier in October, municipal bond
yields topped comparable Treasury bond yields, which is a rare event. Municipal
bonds generally yield less than Treasury securities because their interest
payments are exempt from federal and sometimes state and local income taxes.
    During the past year, municipal bonds were burdened by an excess of supply
relative to demand. State and local governments, taking advantage of the
market's low interest rates, issued $230.9 billion worth of long-term bonds
during the first 10 months of the year--34 percent more than they had issued
during the same period last year. Approximately 44 percent of the new issues
were refinancings of older, higher-yielding bonds. However, new issuance slowed
recently as the number of bonds eligible for refinancing shrank.
    Despite an abundant supply, many investors were reluctant to purchase
municipal bonds because of their generally low yields. Compounding the situation
was the abundance of insured issues, which accounted for almost 60 percent of
the new supply. The dominance of insured bonds reduced the supply of
lower-rated, higher-yielding bonds and narrowed the yield spread between higher-
and lower-rated bonds. (The insurance relates to the timely payment of principal
and interest, when due, on the bonds. The insurance does not protect the bonds
from market risk.)
 
                                                            Continued on page 3
 
                                        2
<PAGE>   4
 
[CREDIT QUALITY GRAPH]
 
Portfolio Composition By Credit Quality*
As Of October 31, 1998

<TABLE>
<CAPTION>
<S>                        <C>
AAA.....................   58.1%
AA......................   14.0%  
A.......................   13.4%
BBB.....................   14.1%
Non-Rated...............    0.4%
</TABLE>

*As a Percentage of Long-Term Investments
Based upon the highest credit quality ratings as issued by Standard & Poor's or
Moody's. 






 
TRUST STRATEGY

    We used the following strategies to manage the Trust during the period:
    We replaced high-coupon bonds that had been called due to the decline in
interest rates, as well as some recent acquisitions that had appreciated in
price.
    We purchased long-term discount bonds, including zero-coupon bonds, in order
to extend the call protection of the Trust. Long-term discount bonds tend to
appreciate faster than par or premium bonds during periods of falling interest
rates, such as the current reporting period. These bonds helped offset the
declining duration of the portfolio that occurred as low interest rates caused
some of our higher-coupon holdings to be prerefunded or priced to call dates. As
of October 31, the duration of the Trust stood at 7.42 years, compared with 7.72
years for the Lehman Brothers Municipal Bond Index (excluding bonds maturing in
five years or less).
    Our purchases favored AAA-rated and insured bonds because under current
market conditions, the yield spread between higher- and lower-rated bonds is
modest, and we believe that investors are not adequately compensated for the
additional credit risk associated with lower-rated securities. As a result of
these purchases and credit upgrades of some Trust assets, the credit quality of
the Trust improved slightly.
 
               Top Five Portfolio Sectors as of October 31, 1998*

                    General Purpose.........................16.7%
                    Wholesale Electric......................12.5%
                    Single-Family Housing...................12.2%
                    Airport.................................10.8%
                    Health Care.............................10.6%
 
                    *As a Percentage of Long-Term Investments
 
                                                            Continued on page 4
 
                                        3
<PAGE>   5
 
PERFORMANCE SUMMARY

    For the one-year period ended October 31, 1998, the Trust generated a total
return of 15.91 percent.(1) This reflects a gain in market price per common
share from $15.0625 on October 31, 1997, to $16.5000 on October 31, 1998, plus
reinvestment of all dividends. The Trust had a tax-exempt distribution rate of
5.45 percent,(3) based on the closing price of its common shares. Because income
from the Trust is exempt from federal income taxes, this distribution rate is
equivalent to a yield of 8.52 percent(4) on a taxable investment for investors
in the 36 percent federal income tax bracket. Please refer to the chart on page
9 for additional performance numbers.
 
[BAR GRAPH]

Twelve-Month Dividend History
For the Period Ended October 31, 1998

<TABLE>
<CAPTION>

                                           Distribution per Common Stock
<S>                                                <C>
Nov 1997.........................................   $ .0750
Dec 1997.........................................   $ .0750
Jan 1998.........................................   $ .0750
Feb 1998.........................................   $ .0750
Mar 1998.........................................   $ .0750
Apr 1998.........................................   $ .0750
May 1998.........................................   $ .0750
Jun 1998.........................................   $ .0750
Jul 1998.........................................   $ .0750
Aug 1998.........................................   $ .0750
Sep 1998........................................    $ .0750
Oct 1998........................................    $ .0750
</TABLE>

The dividend history represents past performance of the Trust and does not 
predict the Trust's future distributions.
 
ECONOMIC OUTLOOK

    We believe the economy will continue to grow at a moderate rate for the
remainder of the year, supported by low interest rates. The housing industry has
already benefited from the sharp decline in interest rates, and other sectors
could follow if consumer and business spending picks up.
    Looking ahead into next year, we see the potential for stronger economic
growth as long as domestic interest rates remain low and the global financial
crisis stabilizes. We believe the current low inflationary environment in the
United States paves the way for further Fed rate cuts if the economy resumes its
slowdown.
    Overseas, we see some promising signs of recovery, including Japan's new
bank reform package, which includes a willingness to let problem banks fail, and
approval of an International Monetary Fund rescue package for Brazil.
 
                                                            Continued on page 5
 
                                        4
<PAGE>   6
 
    We will closely monitor these global and domestic events and their effects
on the performance of the Trust, adjusting the portfolio when appropriate. We
remain committed to the goal of providing a high level of tax-exempt income
while preserving shareholders' capital. Thank you for your continued support and
confidence in Van Kampen and the management of your Trust.
 
Sincerely,
 
[SIG]
Don G. Powell
Chairman
Van Kampen Investment Advisory Corp.
 
[SIG]
Dennis J. McDonnell
President
Van Kampen Investment Advisory Corp.
 
                                                  Please see footnotes on page 9
 
                                        5
<PAGE>   7
 
                          A FAREWELL FROM THE CHAIRMAN
 
            ------------------------   -   ------------------------
 
Dear Shareholder,

    Since I became president and chief executive officer in 1987, much has
changed in our business. However, one thing has remained constant through these
years--my commitment to you, the trust shareholder. Through the many events at
Van Kampen that have marked the passage of time--including several mergers,
company name changes, and leadership changes--we have always focused on
providing superior investments and the highest level of customer service to help
you meet your investment objectives. I'm proud to say that during my tenure, Van
Kampen won eight consecutive awards for high-quality customer service--more
consecutive service awards than any other firm in the financial services
industry.(1) My successor, Dick Powers, shares this commitment to meeting your
needs and providing innovative and efficient ways to help you work with your
investment adviser to reach your financial goals.
    Although my official retirement begins on January 1, 1999, I will remain
active in the industry and the community. I plan to continue my service as a
member of the board of directors of the Investment Company Institute, the
leading mutual fund industry association, and I will remain a trustee of your
Trust.
    In closing, I want to say farewell to all of you. Thank you for your support
of Van Kampen over the years and for giving me the opportunity to serve you.
 
Best wishes,
 
[SIG]
 
Don G. Powell
 
            ------------------------   -   ------------------------
 
(1)American Capital, which merged with Van Kampen in 1995, received the DALBAR
Service Award annually from 1990 to 1994. The award was called the Quality
Tested Service Seal until 1997.
 
                                        6
<PAGE>   8
 
                               GLOSSARY OF TERMS
 
BASIS POINT: A measure used in quoting bond yields. One hundred basis points is
    equal to 1 percent. For example, if a bond's yield changes from 7.00 to 6.65
    percent, it is a 35 basis-point move.
 
CALL FEATURE: Allows the issuer to buy back a bond on specific dates at set
    prices before maturity. These dates and prices are set when the bond is
    issued. To compensate the bondholder for the potential loss of income and
    ownership, a bond's call price is usually higher than the face value of the
    bond. Bonds are usually called when interest rates drop so significantly
    that the issuer can save money by issuing new bonds at lower rates.
 
COUPON RATE: The stated rate of interest the bond pays on an annual basis,
    expressed as a percentage of the face value.
 
CREDIT RATING: An evaluation of an issuer's credit history and capability of
    repaying obligations. Standard & Poor's and Moody's Investors Service are
    two companies that assign bond ratings. Standard & Poor's ratings range from
    a high of AAA to a low of D, while Moody's ratings range from a high of Aaa
    to a low of C.
 
DISCOUNT BOND: A bond whose market price is lower than its face value (or "par
    value"). Because bonds usually mature at face value, a discount bond has
    more potential to appreciate in price than a par bond does.
 
DURATION: A measure of the sensitivity of a bond's price to changes in interest
    rates, expressed in years. Each year of duration represents an expected 1
    percent change in the price of a bond for every 1 percent change in interest
    rates. The longer a bond's duration, the greater the effect of interest rate
    movements on net asset value. Typically, funds with shorter durations are
    expected to perform better in rising rate environments, while funds with
    longer durations are expected to perform better when rates decline.
 
FEDERAL RESERVE BOARD (THE FED): The governing body of the Federal Reserve
    System, which is the central bank system of the United States. Its
    policy-making committee, called the Federal Open Market Committee, meets
    eight times a year to establish monetary policy and monitor the economic
    pulse of the United States.
 
INFLATION: A persistent and measurable rise in the general level of prices.
    Inflation is widely measured by the Consumer Price Index, an economic
    indicator that measures the change in the cost of purchased goods and
    services.
 
INSURED BOND: A bond that is insured against default by the bond insurer. If the
    issuer defaults, the insurance company will step in and take over payments
    of interest and principal when due. Once a bond is insured, it typically
    carries the rating of the insurer. Most insurers are rated AAA.
 
                                        7
<PAGE>   9
 
MUNICIPAL BOND: A debt security issued by a state, municipality, or other
    government entity to finance capital expenditures of public projects, such
    as the construction of highways, public works, or school buildings. Interest
    on public-purpose municipal bonds is exempt from federal income taxes and,
    potentially, from state and local income taxes.
 
NET ASSET VALUE (NAV): The value of a trust share, calculated by deducting a
    trust's liabilities from the total assets applicable to common shareholders
    in its portfolio and dividing this amount by the number of common shares
    outstanding.
 
PREREFUNDING: The process of issuing new bonds to refinance an outstanding
    municipal bond issue prior to its maturity or call date. The proceeds from
    the new bonds are generally invested in U.S. government securities.
    Prerefunding typically occurs when interest rates decline and an issuer
    replaces its higher-yielding bonds with current lower-yielding issues.
 
PREMIUM BOND: A bond whose market price is above its face value (or "par
    value"). Because bonds usually mature at face value, a premium bond has less
    potential to appreciate in price than a par bond does.
 
YIELD SPREAD: The additional yield investors can earn by either investing in
    bonds with longer maturities or by investing in bonds with lower ratings.
    The spread is the difference in yield between bonds with short versus long
    maturities or the difference in yield between high-quality bonds and
    lower-quality bonds.
 
ZERO COUPON BONDS: A corporate or municipal bond that is traded at a deep
    discount to face value and pays no interest. It may be redeemed at maturity
    for full face value.
 
                                        8
<PAGE>   10
 
           PERFORMANCE RESULTS FOR THE PERIOD ENDED OCTOBER 31, 1998
 
                     VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
                           (NYSE TICKER SYMBOL--VMO)
 
<TABLE>
<CAPTION>
 COMMON SHARE TOTAL RETURNS
<S>                                                        <C>
One-year total return based on market price(1)...........    15.91%
One-year total return based on NAV(2)....................     9.35%

 DISTRIBUTION RATES

Distribution rate as a % of closing common stock
price(3).................................................     5.45%
Taxable-equivalent distribution rate as a % of closing
common stock price(4)....................................     8.52%

 SHARE VALUATIONS

Net asset value..........................................  $  17.61
Closing common stock price...............................  $ 16.500
One-year high common stock price (10/02/98)..............  $ 16.750
One-year low common stock price (11/14/97)...............  $ 15.000
Preferred share (Series A) rate(5).......................    3.300%
Preferred share (Series B) rate(5).......................    3.299%
</TABLE>
 
(1)Total return based on market price assumes an investment at the market price
at the beginning of the period indicated, reinvestment of all distributions for
the period in accordance with the Trust's dividend reinvestment plan, and sale
of all shares at the closing common stock price at the end of the period
indicated.
 
(2)Total return based on net asset value (NAV) assumes an investment at the
beginning of the period indicated, reinvestment of all distributions for the
period, and sale of all shares at the end of the period, all at NAV.
 
(3)Distribution rate represents the monthly annualized distributions of the
Trust at the end of the period and not the earnings of the Trust.
 
(4)The taxable-equivalent distribution rate is calculated assuming a 36% federal
income tax bracket.
 
(5)See "Notes to Financial Statements" footnote #5, for more information
concerning Preferred Share reset periods.
 
A portion of the interest income may be taxable for those investors subject to
the federal alternative minimum tax (AMT).
 
Past performance does not guarantee future results. Investment return, stock
price and net asset value will fluctuate with market conditions. Trust shares,
when sold, may be worth more or less than their original cost.
 
                                        9
<PAGE>   11
 
                            PORTFOLIO OF INVESTMENTS
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          MUNICIPAL BONDS  102.2%
          ALABAMA  0.0%
$   400   Mobile, AL Indl Dev Brd Solid Waste Disp Rev
          Mobile Energy Svcs Co Proj Rfdg................      6.950%  01/01/20  $    208,000
                                                                                 ------------
          CALIFORNIA  6.0%
  1,455   California Hsg Fin Agy Rev Home Mtg Ser B1.....      6.300   08/01/08     1,562,743
  2,000   California Pollutn Ctl Fin Auth Pollutn Ctl Rev
          Southn CA Edison Co (AMBAC Insd)...............      6.000   07/01/27     2,151,600
  1,110   California Rural Home Mtg Fin Auth Single
          Family Mtg Rev Ser C (GNMA Collateralized).....      7.800   02/01/28     1,309,189
  5,000   Contra Costa, CA Home Mtg Fin Auth Home Mtg Rev
          (MBIA Insd)....................................          *   09/01/17     1,975,950
  4,000   Foothill/Eastern Tran Agy Conv Cap Apprec Lien
          Ser A (c)......................................    0/7.050   01/01/10     3,306,000
  5,000   Orange Cnty, CA Recovery Ctfs Ser A (MBIA
          Insd)..........................................      6.000   07/01/06     5,684,600
  5,000   Orange Cnty, CA Recovery Ctfs Ser A (MBIA
          Insd)..........................................      6.000   07/01/08     5,749,600
  3,000   Orange Cnty, CA Recovery Ser A Rfdg (MBIA
          Insd)..........................................      6.000   06/01/08     3,446,670
                                                                                 ------------
                                                                                   25,186,352
                                                                                 ------------
          COLORADO  6.4%
  2,000   Arapahoe Cnty, CO Cap Impt Trust Fund Hwy Rev
          E-470 Proj Ser B (Prerefunded @ 08/31/05)......      7.000   08/31/26     2,405,980
  1,000   Castle Rock, CO Multi-Family Rev Hsg Pines at
          Castle Rock Ser A (FSA Insd)...................      6.100   12/01/16     1,063,720
  1,500   Colorado Hsg Fin Auth Multi-Family Hsg Ins Mtg
          Ser B2.........................................      5.800   10/01/28     1,585,800
  1,500   Colorado Hsg Fin Auth Single Family Pgm Sr Ser
          A2.............................................      7.250   05/01/27     1,709,085
  1,205   Colorado Hsg Fin Auth Single Family Pgm Sr Ser
          A3.............................................      7.000   11/01/24     1,297,435
  1,500   Colorado Hsg Fin Auth Single Family Pgm Sr Ser
          C1.............................................      7.550   11/01/27     1,713,840
  3,200   Denver, CO City & Cnty Arpt Rev Ser A..........      8.500   11/15/07     3,514,944
    300   Denver, CO City & Cnty Arpt Rev Ser A
          (Prerefunded @ 11/15/00).......................      8.500   11/15/07       335,019
  5,145   Denver, CO City & Cnty Arpt Rev Ser A 144A
          Private Placement (d)..........................      8.875   11/15/12     5,890,922
  1,855   Denver, CO City & Cnty Arpt Rev Ser A
          (Prerefunded @ 11/15/01) 144A Private
          Placement (d)..................................      8.875   11/15/12     2,164,247
  1,750   Denver, CO City & Cnty Arpt Rev Ser B (MBIA
          Insd)..........................................      6.250   11/15/06     1,993,285
  1,000   Denver, CO City & Cnty Arpt Rev Ser B (MBIA
          Insd)..........................................      6.250   11/15/07     1,147,610
  1,005   Greeley, CO Multi-Family Rev Hsg Mtg Creek
          Stone (FHA Gtd)................................      5.950   07/01/28     1,056,567
  1,000   Highlands Ranch Metro Dist No 2 CO Rfdg (FSA
          Insd)..........................................      6.500   06/15/11     1,200,080
                                                                                 ------------
                                                                                   27,078,534
                                                                                 ------------
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       10
<PAGE>   12
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          CONNECTICUT  1.0%
$   840   Mashantucket Western Pequot Tribe CT Spl Rev
          Ser A, 144A Private Placement (Escrowed to
          Maturity) (d)..................................      6.500%  09/01/06  $    973,770
    860   Mashantucket Western Pequot Tribe CT Spl Rev
          Ser A, 144A Private Placement (d)..............      6.500   09/01/06       980,383
  1,000   Mashantucket Western Pequot Tribe CT Spl Rev
          Ser A, 144A Private Placement (d)..............      6.400   09/01/11     1,108,170
  1,000   Mashantucket Western Pequot Tribe CT Spl Rev
          Ser A, 144A Private Placement (Prerefunded @
          09/01/07) (d)..................................      6.400   09/01/11     1,171,500
                                                                                 ------------
                                                                                    4,233,823
                                                                                 ------------
          DISTRICT OF COLUMBIA  0.5%
  2,000   Metropolitan Washington, DC Arpt Auth Genl Arpt
          Rev Ser A (FGIC Insd)..........................      7.250   10/01/10     2,158,640
                                                                                 ------------
          FLORIDA  0.8%
  3,000   Florida St Brd Edl Cap Outlay Pub Edl Ser A....      5.875   06/01/16     3,244,320
                                                                                 ------------
          GEORGIA  3.3%
  2,935   Fulton Cnty, GA Lease Rev, 144A Private
          Placement (d)..................................      7.250   06/15/10     3,427,240
  2,000   George L Smith II GA World Congress Cntr Auth
          Rev (MBIA Insd) (a)............................      6.000   07/01/09     2,156,960
  7,000   Georgia Muni Elec Auth Pwr Rev Ser A Genl Ser A
          (MBIA Insd)....................................      6.500   01/01/20     8,407,560
                                                                                 ------------
                                                                                   13,991,760
                                                                                 ------------
          HAWAII  1.3%
  5,000   Hawaii St Arpt Sys Rev Ser 2...................      7.000   07/01/18     5,388,350
                                                                                 ------------
          IDAHO  0.3%
  1,075   Idaho Hsg & Fin Assn Single Family Mtg Mezz
          Series E 2.....................................      5.950   07/01/14     1,139,704
                                                                                 ------------
          ILLINOIS  7.0%
  1,090   Chicago, IL Midway Arpt Rev Ser A (MBIA Insd)..      5.000   01/01/18     1,077,345
  3,500   Chicago, IL Midway Arpt Rev Ser B (MBIA Insd)..      5.000   01/01/35     3,422,440
  5,000   Chicago, IL O'Hare Intl Arpt Rev Genl Arpt
          Second Lien Ser A Rfdg (MBIA Insd) (b).........      6.375   01/01/12     5,594,450
  6,400   Chicago, IL Sch Fin Auth Ser A (MBIA Insd).....      5.000   06/01/09     6,686,848
    970   Chicago, IL Single Family Mtg Rev Ser A (GNMA
          Collateralized)................................      7.000   09/01/27     1,088,136
  1,125   Chicago, IL Single Family Mtg Rev Ser B (GNMA
          Collateralized)................................      7.625   09/01/27     1,293,570
  1,000   Illinois Dev Fin Auth Pollutn Ctl Rev IL Pwr Co
          Proj Ser A Rfdg (MBIA Insd)....................      5.400   03/01/28     1,020,390
  3,285   Illinois Hlth Fac Auth Rev Midwest Physician
          Group Ltd Proj (Prerefunded @ 11/15/04)........      8.125   11/15/19     4,054,544
  1,475   Regional Tran Auth IL Ser A (AMBAC Insd).......      6.500   06/01/15     1,623,370
  1,410   Sangamon Cnty, IL Cmnty Unit Sch Dist No 5
          (FGIC Insd)....................................      6.400   12/01/03     1,574,519
  1,865   Sangamon Cnty, IL Cmnty Unit Sch Dist No 5
          (FGIC Insd)....................................      6.500   12/01/05     2,148,294
                                                                                 ------------
                                                                                   29,583,906
                                                                                 ------------
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       11
<PAGE>   13
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          INDIANA  0.7%
$ 2,500   Purdue Univ, IN Univ Rev Student Fee Ser B
          (Prerefunded @ 01/01/05).......................      6.750%  07/01/09  $  2,930,400
                                                                                 ------------
          KENTUCKY  1.0%
  1,475   Kenton Cnty, KY Arpt Brd Rev Cincinnati/Northn
          KY Intl Arpt Ser A Rfdg (MBIA Insd)............      6.200   03/01/08     1,678,196
  1,000   Kentucky Econ Dev Fin Auth Hosp Sys Rev
          Appalachian Regl Rfdg & Impt...................      5.600   10/01/08     1,060,080
  1,350   Kentucky Hsg Corp Hsg Rev Ser B................      6.250   07/01/28     1,453,950
                                                                                 ------------
                                                                                    4,192,226
                                                                                 ------------
          MAINE  0.9%
  2,190   Maine Edl Ln Auth Rev Supplemental Pgm Ser A1..      7.000   12/01/16     2,342,468
  1,200   Maine Edl Ln Auth Rev Supplemental Pgm Ser A2..      7.150   12/01/16     1,287,756
                                                                                 ------------
                                                                                    3,630,224
                                                                                 ------------
          MARYLAND  1.7%
  3,500   Maryland St Cmnty Dev Admin Dept Hsg & Cmnty
          Dev Rev Single Family Pgm Ser 7................      7.250   04/01/19     3,784,235
  3,005   Maryland St Cmnty Dev Admin Dept Hsg & Cmnty
          Dev Rev Single Family Pgm Ser 7................      7.300   04/01/25     3,241,373
                                                                                 ------------
                                                                                    7,025,608
                                                                                 ------------
          MASSACHUSETTS  1.3%
  2,000   Massachusetts St Hlth & Edl Fac Auth Rev New
          England Med Cent Hosp Ser G (Embedded Swap)
          (MBIA Insd) (c)................................  3.10/5.00   07/01/13     1,982,960
  3,000   Plymouth Cnty, MA Ctfs Partn Ser A.............      7.000   04/01/22     3,350,910
                                                                                 ------------
                                                                                    5,333,870
                                                                                 ------------
          MICHIGAN  2.3%
  1,000   Michigan St Hosp Fin Auth Rev Hosp Genesys Regl
          Med Rfdg (ACA Insd)............................      5.500   10/01/18     1,017,620
  3,500   Michigan St Hosp Fin Auth Rev Hosp Genesys Regl
          Med Rfdg (ACA Insd)............................      5.500   10/01/27     3,550,050
  4,500   Monroe Cnty, MI Pollutn Ctl Rev Coll Detroit
          Edison Monroe Ser 1 (MBIA Insd)................      6.875   09/01/22     5,001,345
                                                                                 ------------
                                                                                    9,569,015
                                                                                 ------------
          MISSISSIPPI  1.5%
  3,730   Mississippi Home Corp Single Family Rev Mtg Ser
          C (GNMA Collateralized)........................      7.600   06/01/29     4,261,450
  1,985   Mississippi Home Corp Single Family Rev Mtg Ser
          F (GNMA Collateralized)........................      7.550   12/01/27     2,273,560
                                                                                 ------------
                                                                                    6,535,010
                                                                                 ------------
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       12
<PAGE>   14
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          MISSOURI  2.0%
$ 2,500   Missouri St Hlth & Edl Fac Auth Rev BJC Hlth
          Sys............................................      5.000%  05/15/28  $  2,430,400
  1,485   Saint Charles Cnty, MO Indl Dev Auth Indl Rev
          Dev Westchester Vlg Apts Ser A Rfdg............      6.150   02/01/27     1,584,064
    660   Saint Louis Cnty, MO Single Family Mtg Rev
          (MBIA Insd)....................................      6.900   04/01/16       723,453
  3,000   Sikeston, MO Elec Rev Rfdg (MBIA Insd) (b).....      6.200   06/01/10     3,514,230
                                                                                 ------------
                                                                                    8,252,147
                                                                                 ------------
          NEVADA  1.0%
  4,000   Clark Cnty, NV Indl Dev Rev NV Pwr Co Proj Ser
          A (FGIC Insd)..................................      6.700   06/01/22     4,386,480
                                                                                 ------------
          NEW HAMPSHIRE  0.5%
  2,000   New Hampshire St Hsg Fin Auth Single Family Rev
          Mtg Acquisition Ser B Rfdg.....................      6.100   07/01/28     2,120,580
                                                                                 ------------
          NEW JERSEY  5.8%
 20,000   New Jersey Econ Dev Auth St Contract Econ
          Recovery (MBIA Insd)...........................      5.900   03/15/21    22,802,200
  1,395   New Jersey Hlthcare Fac Fin Auth Rev Christ
          Hosp Group Issue (Connie Lee Insd).............      7.000   07/01/04     1,603,399
                                                                                 ------------
                                                                                   24,405,599
                                                                                 ------------
          NEW MEXICO  2.5%
    685   Hobbs, NM Single Family Mtg Rev Rfdg...........      8.750   07/01/11       762,261
  5,090   New Mexico Mtg Fin Auth Single Family Mtg Pgm
          Ser G (GNMA Collateralized)....................      7.250   07/01/26     5,476,891
  2,000   New Mexico St Hosp Equip Loan Council Hosp Rev
          Mem Med Ctr Inc Proj (a).......................      5.500   06/01/28     1,957,080
  2,000   University of NM Technology Dev Corp Lease Rev
          Univ Cent Resh Pk Proj Ser A (Prerefunded @
          08/15/04) (MBIA Insd)..........................      6.450   08/15/18     2,294,520
                                                                                 ------------
                                                                                   10,490,752
                                                                                 ------------
          NEW YORK  20.2%
  3,000   Long Island Pwr Auth NY Elec Genl (a)..........      4.000   04/01/05     2,990,670
  3,000   Long Island Pwr Auth NY Elec Genl (MBIA Insd)
          (a)............................................      5.000   04/01/07     3,174,090
  2,000   Metropolitan Tran Auth NY Commuter Facs Rev
          Contract.......................................      5.500   07/01/14     2,119,000
  3,000   Metropolitan Tran Auth NY Svcs Contract Tran
          Fac Ser 5 Rfdg.................................      7.000   07/01/12     3,282,300
  1,440   New York City Indl Dev Agy Spl Fac Rev Terminal
          One Group Assn Proj............................      6.100   01/01/09     1,558,613
  3,000   New York City Indl Dev Agy Spl Fac Rev Terminal
          One Group Assn Proj............................      6.000   01/01/15     3,196,290
  5,000   New York City Muni Wtr Fin Auth Ser B..........      5.750   06/15/29     5,400,100
 10,000   New York City Ser A............................      7.000   08/01/07    11,831,000
  5,000   New York City Ser A Rfdg.......................      7.000   08/01/05     5,807,350
     40   New York City Ser D (b)........................      7.500   02/01/19        44,643
  7,960   New York City Ser D (Prerefunded @ 02/01/02)
          (b)............................................      7.500   02/01/19     8,987,477
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       13
<PAGE>   15
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          NEW YORK (CONTINUED)
$ 1,500   New York St Dorm Auth Rev Mental Hlth Svcs Fac
          Ser A..........................................      5.750%  08/15/12  $  1,636,635
  2,070   New York St Dorm Auth Rev Mental Hlth Svcs Fac
          Ser B..........................................      5.750   08/15/10     2,273,626
  6,060   New York St Dorm Auth Rev City Univ Ser F......      5.500   07/01/12     6,350,274
  1,500   New York St Dorm Auth Rev Dept Ed St of NY
          Issue Ser A....................................      5.800   07/01/22     1,589,895
  1,365   New York St Dorm Auth Rev St Univ Edl Fac Ser B
          Rfdg...........................................      5.250   05/15/09     1,463,785
  1,890   New York St Mtg Agy Rev Homeowner Mtg Ser 58...      6.400   04/01/27     2,071,119
  6,400   New York St Thruway Auth Svc Contract Rev Loc
          Hwy & Brdg.....................................      5.750   04/01/09     7,010,816
  1,100   New York St Urban Dev Corp Rev Correctional Cap
          Fac Ser 4......................................      5.375   01/01/23     1,113,607
  3,000   New York St Urban Dev Corp Rev Correctional Cap
          Fac Ser 7......................................      5.700   01/01/27     3,159,480
  3,500   Port Auth NY & NJ Cons 97th Ser (FGIC Insd)....      6.650   01/15/23     3,953,250
  5,400   Port Auth NY & NJ Spl Oblig Rev Spl Proj JFK
          Intl Arpt Terminal 6 (MBIA Insd)...............      5.750   12/01/22     5,743,602
                                                                                 ------------
                                                                                   84,757,622
                                                                                 ------------
          NORTH CAROLINA  3.0%
 11,000   North Carolina Muni Pwr Agy No 1 Catawba Elec
          Rev (MBIA Insd)................................      6.000   01/01/12    12,619,420
                                                                                 ------------
          OHIO  1.9%
  1,000   Akron, OH Ctfs Partn Akron Muni Baseball
          Stadium Proj (c)...............................    0/6.500   12/01/07       969,040
  1,325   Lorain Cnty, OH Hosp Rev Catholic Hlthcare
          Partners Rfdg Ser B (MBIA Insd)................      5.625   09/01/15     1,429,808
  3,000   Lucas Cnty, OH Hosp Rev Promedica Hlthcare
          Oblig (MBIA Insd)..............................      6.000   11/15/07     3,408,750
  1,000   Ohio Hsg Fin Agy Mtg Rev Residential Ser A1
          (GNMA Collateralized)..........................      6.150   03/01/29     1,071,860
  1,000   Ohio St Air Quality Dev Auth Rev JMG Funding
          Ltd Partn Proj Rfdg (AMBAC Insd)...............      6.375   04/01/29     1,113,750
                                                                                 ------------
                                                                                    7,993,208
                                                                                 ------------
          OKLAHOMA  2.2%
  2,000   Tulsa, OK Indl Auth Hosp Rev Hillcrest Med Cent
          Proj Rfdg (Connie Lee Insd)....................      6.125   06/01/05     2,226,120
  3,140   Tulsa, OK Indl Auth Hosp Rev Hillcrest Med Cent
          Proj Rfdg (Connie Lee Insd)....................      6.250   06/01/08     3,594,170
  3,000   Tulsa, OK Muni Arpt Tran Rev American Airls
          Inc............................................      7.600   12/01/30     3,254,130
                                                                                 ------------
                                                                                    9,074,420
                                                                                 ------------
          OREGON  0.5%
  2,000   Oregon St Econ Dev Rev Georgia Pacific Corp....      6.350   08/01/25     2,134,700
                                                                                 ------------
          PENNSYLVANIA  6.2%
  2,000   Allegheny Cnty, PA Arpt Rev Rfdg Pittsburgh
          Intl Arpt A (MBIA Insd)........................      5.750   01/01/10     2,229,560
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       14
<PAGE>   16
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          PENNSYLVANIA (CONTINUED)
$ 6,655   Berks Cnty, PA Muni Auth Rev Highlands at
          Wyomissing Proj Ser B..........................      6.875%  10/01/17  $  7,215,617
  8,500   Geisinger Auth PA Hlth Sys Ser A (Prerefunded @
          07/01/02)......................................      6.400   07/01/22     9,418,255
  1,440   Harrisburg, PA Cap Apprec Rfdg Nts Ser F (AMBAC
          Insd)..........................................          *   03/15/15       641,434
  1,865   Harrisburg, PA Cap Apprec Rfdg Ser D (AMBAC
          Insd)..........................................          *   09/15/15       810,492
  1,865   Harrisburg, PA Cap Apprec Rfdg Ser D (AMBAC
          Insd)..........................................          *   03/15/16       784,046
  1,000   Indiana Cnty, PA Indl Dev Auth Pollutn Ctl Rev
          Metro Edison Co Proj A (AMBAC Insd)............      5.950   05/01/27     1,083,270
  2,500   Pennsylvania Hsg Fin Agy Single Family Mtg Ser
          60A Rfdg.......................................      5.850   10/01/27     2,602,775
  1,000   Pennsylvania Intergvtl Co-op Auth Spl Tax Rev
          City of Philadelphia (Prerefunded @
          06/15/02)......................................      6.800   06/15/22     1,105,100
                                                                                 ------------
                                                                                   25,890,549
                                                                                 ------------
          SOUTH DAKOTA  0.3%
  1,285   South Dakota St Hlth & Edl Fac Auth Vocational
          Ed Pgm Ser A (AMBAC Insd)......................      5.400   08/01/13     1,383,906
                                                                                 ------------
          TEXAS  5.7%
  1,000   Austin, TX Util Sys Rev Rfdg (AMBAC Insd)......      6.500   11/15/05     1,152,420
  3,000   Brazos River Auth TX Rev Houston Inds Inc Proj
          Ser D Rfdg (MBIA Insd).........................      4.900   10/01/15     3,039,600
  4,500   Dallas-Fort Worth, TX Intl Arpt Fac Impt Corp
          Rev Delta Airls Inc............................      7.000   11/01/01     4,809,465
  2,525   Dallas-Fort Worth, TX Intl Arpt Fac Impt Corp
          Rev Delta Airls Inc............................      7.625   11/01/21     2,768,309
  5,000   Ector Cnty, TX Hosp Dist Hosp Rev Med Cent Hosp
          (Prerefunded @ 04/15/02).......................      7.300   04/15/12     5,664,650
  5,000   Houston, TX Arpt Sys Rev Sub Lien Ser B (FGIC
          Insd) (a)......................................      5.000   07/01/25     4,838,750
  1,740   Texas Genl Svcs Comm Partn Int Lease Purch
          Ctfs, 144A Private Placement (d)...............      7.250   08/01/11     1,779,291
                                                                                 ------------
                                                                                   24,052,485
                                                                                 ------------
          UTAH  1.8%
  1,500   Intermountain Pwr Agy UT Pwr Supply Rev Ser B
          Rfdg (MBIA Insd)...............................      5.750   07/01/19     1,626,270
  1,500   Intermountain Pwr Agy UT Rev Ser E Rfdg (FSA
          Insd)..........................................      6.000   07/01/06     1,690,560
  2,205   Utah St Hsg Fin Agy Single Family Ser C 2......      6.000   07/01/15     2,324,952
  1,715   Utah St Hsg Fin Agy Single Family Mtg Sr Issue
          B3.............................................      7.100   07/01/24     1,817,111
                                                                                 ------------
                                                                                    7,458,893
                                                                                 ------------
          VIRGINIA  2.1%
  8,200   Roanoke, VA Indl Dev Auth Hosp Rev Roanoke Mem
          Hosp Carilion Hlth Sys Ser B Rfdg (MBIA Insd)
          (c)............................................  4.70/6.25   07/01/20     8,676,010
                                                                                 ------------
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       15
<PAGE>   17
                      PORTFOLIO OF INVESTMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
Par
Amount
(000)     Description                                         Coupon   Maturity  Market Value
- ---------------------------------------------------------------------------------------------
<C>       <S>                                              <C>         <C>       <C>
          WASHINGTON  6.9%
$ 9,850   Bellevue, WA Convention Cent Comp Int Rfdg
          (MBIA Insd)....................................          *   02/01/25  $  2,573,805
 10,975   Washington St Pub Pwr Supply Sys Nuclear Proj
          No 1 Rev Ser A Rfdg (MBIA Insd)................      5.700%  07/01/17    11,445,169
 10,000   Washington St Pub Pwr Supply Sys Nuclear Proj
          No 1 Rev Ser B Rfdg (MBIA Insd)................      5.600   07/01/15    10,464,600
  2,000   Washington St Pub Pwr Supply Sys Nuclear Proj
          No 2 Rev Ser A Rfdg (AMBAC Insd)...............      6.000   07/01/08     2,260,620
  5,125   Washington St Pub Pwr Supply Sys Nuclear Proj
          No 3 Rev Ser C Rfdg (MBIA Insd)................          *   07/01/14     2,367,442
                                                                                 ------------
                                                                                   29,111,636
                                                                                 ------------
          WEST VIRGINIA  2.1%
  8,000   Harrison Cnty, WV Cmnty Solid Waste Disp Rev
          West Penn Pwr Co Proj Ser A (b)................      6.875   04/15/22     8,666,800
                                                                                 ------------
          WISCONSIN  1.1%
  1,000   Madison, WI Indl Dev Rev Madison Gas & Elec Co
          Proj Ser A.....................................      6.750   04/01/27     1,084,880
  3,500   Wisconsin Hsg & Econ Dev Auth Homeownership Rev
          Ser C..........................................      6.250   09/01/17     3,757,565
                                                                                 ------------
                                                                                    4,842,445
                                                                                 ------------
          WYOMING  0.4%
  1,485   Wyoming Cmnty Dev Auth Hsg Rev Ser 2...........      6.350   06/01/29     1,600,028
                                                                                 ------------
TOTAL LONG-TERM INVESTMENTS  102.2%
  (Cost $385,499,855)..........................................................   429,347,422
LIABILITIES IN EXCESS OF OTHER ASSETS  (2.2%)..................................    (9,052,629)
                                                                                 ------------
NET ASSETS  100.0%.............................................................  $420,294,793
                                                                                 ============
</TABLE>
 
*Zero coupon bond
 
(a) Securities purchased on a when issued or delayed delivery basis.
 
(b) Assets segregated as collateral for when issued or delayed delivery purchase
    commitments.
 
(c) Security is a "step-up" bond where the coupon increases or steps up at a
    predetermined date.
 
(d) 144A securities are those which are exempt from registration under Rule 144A
    of the Securities Act of 1933. These securities may be resold in
    transactions exempt from registration which are normally transactions with
    qualified institutional buyers.
 
                                               See Notes to Financial Statements
 
                                       16
<PAGE>   18
 
                      STATEMENT OF ASSETS AND LIABILITIES
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                           <C>
ASSETS:
Total Investments (Cost $385,499,855).......................  $429,347,422
Receivables:
  Interest..................................................     6,725,267
  Investments Sold..........................................     2,244,760
Other.......................................................         7,085
                                                              ------------
      Total Assets..........................................   438,324,534
                                                              ------------
LIABILITIES:
Payables:
  Investments Purchased.....................................    17,192,561
  Investment Advisory Fee...................................       233,187
  Income Distributions--Common and Preferred Shares.........       171,753
  Administrative Fee........................................        71,750
  Custodian Bank............................................        43,722
  Affiliates................................................        16,825
Accrued Expenses............................................       205,605
Trustees' Deferred Compensation and Retirement Plans........        94,338
                                                              ------------
      Total Liabilities.....................................    18,029,741
                                                              ------------
NET ASSETS..................................................  $420,294,793
                                                              ============
NET ASSETS CONSIST OF:
 
Preferred Shares ($.01 par value, authorized 100,000,000
  shares, 3,000 issued with liquidation preference of
  $50,000 per share)........................................  $150,000,000
                                                              ------------
Common Shares ($.01 par value with an unlimited number of
  shares authorized, 15,352,891 shares issued and
  outstanding)..............................................       153,529
Paid in Surplus.............................................   226,719,758
Net Unrealized Appreciation.................................    43,847,567
Accumulated Undistributed Net Investment Income.............     1,425,622
Accumulated Net Realized Loss...............................    (1,851,683)
                                                              ------------
      Net Assets Applicable to Common Shares................   270,294,793
                                                              ------------
NET ASSETS..................................................  $420,294,793
                                                              ============
NET ASSET VALUE PER COMMON SHARE ($270,294,793 divided
  by 15,352,891 shares outstanding).........................  $      17.61
                                                              ============
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       17
<PAGE>   19
 
                            STATEMENT OF OPERATIONS
 
                      For the Year Ended October 31, 1998
- --------------------------------------------------------------------------------
 
<TABLE>
<S>                                                           <C>
INVESTMENT INCOME:
Interest....................................................  $23,559,416
                                                              -----------
EXPENSES:
Investment Advisory Fee.....................................    2,703,320
Administrative Fee..........................................      831,791
Preferred Share Maintenance.................................      375,041
Trustees' Fees and Expenses.................................       31,384
Custody.....................................................       28,773
Legal.......................................................       17,388
Other.......................................................      299,387
                                                              -----------
    Total Expenses..........................................    4,287,084
                                                              -----------
NET INVESTMENT INCOME.......................................  $19,272,332
                                                              ===========
REALIZED AND UNREALIZED GAIN/LOSS:
Realized Gain/Loss:
  Investments...............................................  $   580,096
  Futures...................................................     (489,921)
                                                              -----------
Net Realized Gain...........................................       90,175
                                                              -----------
Unrealized Appreciation/Depreciation:
Beginning of the Period.....................................   34,074,139
End of the Period...........................................   43,847,567
                                                              -----------
Net Unrealized Appreciation During the Period...............    9,773,428
                                                              -----------
NET REALIZED AND UNREALIZED GAIN............................  $ 9,863,603
                                                              ===========
NET INCREASE IN NET ASSETS FROM OPERATIONS..................  $29,135,935
                                                              ===========
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       18
<PAGE>   20
 
                       STATEMENT OF CHANGES IN NET ASSETS
 
                 For the Years Ended October 31, 1998 and 1997
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                             Year Ended         Year Ended
                                                       October 31, 1998   October 31, 1997
- ------------------------------------------------------------------------------------------
<S>                                                        <C>                <C>
FROM INVESTMENT ACTIVITIES:
Operations:
Net Investment Income...................................   $ 19,272,332       $ 19,243,057
Net Realized Gain/Loss..................................         90,175           (571,232)
Net Unrealized Appreciation During the Period...........      9,773,428         13,312,439
                                                           ------------       ------------
Change in Net Assets from Operations....................     29,135,935         31,984,264
                                                           ------------       ------------
Distributions from Net Investment Income:
  Common Shares.........................................    (13,817,036)       (13,817,017)
  Preferred Shares......................................     (5,336,712)        (5,359,157)
                                                           ------------       ------------
Total Distributions.....................................    (19,153,748)       (19,176,174)
                                                           ------------       ------------
NET CHANGE IN NET ASSETS FROM INVESTMENT ACTIVITIES.....      9,982,187         12,808,090

NET ASSETS:
Beginning of the Period.................................    410,312,606        397,504,516
                                                           ------------       ------------
End of the Period (Including accumulated undistributed
  net investment income of $1,425,622 and $1,307,038,
  respectively).........................................   $420,294,793       $410,312,606
                                                           ============       ============
</TABLE>
 
                                               See Notes to Financial Statements
 
                                       19
<PAGE>   21
 
                              FINANCIAL HIGHLIGHTS
 
  The following schedule presents financial highlights for one common share of
            the Trust outstanding throughout the periods indicated.
- --------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
                                                                                              April 24, 1992
                                                                                               (Commencement
                                                Year Ended October 31,                         of Investment
                              -----------------------------------------------------------     Operations) to
                                1998       1997        1996      1995      1994      1993   October 31, 1992
- ------------------------------------------------------------------------------------------------------------
<S>                           <C>        <C>        <C>       <C>       <C>       <C>            <C>
Net Asset Value,
 Beginning of the Period
 (a)........................  $ 16.955   $ 16.121   $15.846   $14.389   $17.297   $14.990            $14.771
                              --------   --------   -------   -------   -------   -------            -------
 Net Investment Income......     1.255      1.253     1.271     1.275     1.303     1.354               .611
 Net Realized and Unrealized
   Gain/Loss................      .643       .830      .266     1.584    (2.918)    2.332               .083
                              --------   --------   -------   -------   -------   -------            -------
Total from Investment
 Operations.................     1.898      2.083     1.537     2.859    (1.615)    3.686               .694
                              --------   --------   -------   -------   -------   -------            -------
Less:
 Distributions from Net
   Investment Income:
   Paid to Common
     Shareholders...........      .900       .900      .906     1.012     1.020     1.020               .340
   Common Share Equivalent
     of Distributions Paid
     to Preferred
     Shareholders...........      .348       .349      .356      .390      .273      .282               .135
 Distributions from Net
   Realized Gains:
   Paid to Common
     Shareholders...........       -0-        -0-       -0-       -0-       -0-      .057                -0-
   Common Share Equivalent
     of Distributions Paid
     to Preferred
     Shareholders...........       -0-        -0-       -0-       -0-       -0-      .020                -0-
                              --------   --------   -------   -------   -------   -------            -------
Total Distributions.........     1.248      1.249     1.262     1.402     1.293     1.379               .475
                              --------   --------   -------   -------   -------   -------            -------
Net Asset Value, End of the
 Period.....................  $ 17.605   $ 16.955   $16.121   $15.846   $14.389   $17.297            $14.990
                              ========   ========   =======   =======   =======   =======            =======
Market Price Per Share at
 End of the Period..........  $ 16.500   $15.0625   $13.750   $13.625   $13.000   $16.375            $14.500
Total Investment Return at
 Market Price (b)...........    15.91%     16.54%     7.72%    12.70%   (14.96%)   20.85%             (1.16%)*
Total Return at Net Asset
 Value (c)..................     9.35%     11.11%     7.61%    17.74%   (11.30%)   23.17%              2.10%*
Net Assets at End of the
 Period (In millions).......  $  420.3   $  410.3   $ 397.5   $ 393.3   $ 370.9   $ 415.6            $ 380.1
Ratio of Expenses to Average
 Net Assets Applicable to
 Common Shares**............     1.61%      1.64%     1.66%     1.75%     1.69%     1.62%              1.54%
Ratio of Net Investment
 Income to Average Net
 Assets Applicable to Common
 Shares (d).................     5.24%      5.51%     5.73%     5.87%     6.43%     6.51%              5.82%
Portfolio Turnover..........       29%        49%       85%       70%       76%       52%                53%*
*Non-Annualized
**Ratio of Expenses to
 Average Net Assets
 Including Preferred
 Shares.....................     1.03%      1.03%     1.03%     1.06%     1.05%     1.02%              1.04%
</TABLE>
 
(a) Net Asset Value at April 24, 1992, is adjusted for common and preferred
    share offering costs of $.229 per common share.
 
(b) Total Investment Return at Market Price reflects the change in market value
    of the common shares for the period indicated with reinvestment of dividends
    in accordance with the Trust's dividend reinvestment plan.
 
(c) Total Return at Net Asset Value (NAV) reflects the change in value of the
    Trust's assets with reinvestment of dividends based upon NAV.
 
(d) Net Investment Income is adjusted for the common share equivalent of
    distributions paid to preferred shareholders.
 
                                               See Notes to Financial Statements
 
                                       20
<PAGE>   22
 
                         NOTES TO FINANCIAL STATEMENTS
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
1. SIGNIFICANT ACCOUNTING POLICIES
 
Van Kampen Municipal Opportunity Trust, formerly known as Van Kampen American
Capital Municipal Opportunity Trust, (the "Trust") is registered as a
diversified closed-end management investment company under the Investment
Company Act of 1940, as amended. The Trust's investment objective is to provide
a high level of current income exempt from federal income tax, consistent with
preservation of capital. The Trust will invest in a portfolio consisting
substantially of municipal obligations rated investment grade at the time of
investment. The Trust commenced investment operations on April 24, 1992.
 
    The following is a summary of significant accounting policies consistently
followed by the Trust in the preparation of its financial statements. The
preparation of financial statements in conformity with generally accepted
accounting principles requires management to make estimates and assumptions that
affect the reported amounts of assets and liabilities and disclosure of
contingent assets and liabilities at the date of the financial statements and
the reported amounts of revenues and expenses during the reporting period.
Actual results could differ from those estimates.
 
A. SECURITY VALUATION--Investments are stated at value using market quotations
or, if such valuations are not available, estimates obtained from yield data
relating to instruments or securities with similar characteristics in accordance
with procedures established in good faith by the Board of Trustees. Short-term
securities with remaining maturities of 60 days or less are valued at amortized
cost.
 
B. SECURITY TRANSACTIONS--Security transactions are recorded on a trade date
basis. Realized gains and losses are determined on an identified cost basis. The
Trust may purchase and sell securities on a "when issued" or "delayed delivery"
basis, with settlement to occur at a later date. The value of the security so
purchased is subject to market fluctuations during this period. The Trust will
maintain, in a segregated account with its custodian, assets having an aggregate
value at least equal to the amount of the when issued or delayed delivery
purchase commitments until payment is made.
 
C. INVESTMENT INCOME--Interest income is recorded on an accrual basis. Bond
premium and original issue discount are amortized over the expected life of each
applicable security.
 
D. FEDERAL INCOME TAXES--It is the Trust's policy to comply with the
requirements of the Internal Revenue Code applicable to regulated investment
companies and to distribute
 
                                       21
<PAGE>   23
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
substantially all of its taxable income to its shareholders. Therefore, no
provision for federal income taxes is required.
 
    The Trust intends to utilize provisions of the federal income tax laws which
allow it to carry a realized capital loss forward for eight years following the
year of the loss and offset such losses against any future realized capital
gains. At October 31, 1998, the Trust had an accumulated capital loss
carryforward for tax purposes of $1,851,683 which will expire between October
31, 2003 and October 31, 2005.
 
    At October 31, 1998, for federal income tax purposes, cost of long-term
investments is $385,499,855; the aggregate gross unrealized appreciation is
$44,044,972 and the aggregate gross unrealized depreciation is $197,405
resulting in net unrealized appreciation on long-term investments of
$43,847,567.
 
E. DISTRIBUTION OF INCOME AND GAINS--The Trust declares and pays monthly
dividends from net investment income to common shareholders. Net realized gains,
if any, are distributed annually on a pro rata basis to common and preferred
shareholders. Distributions from net realized gains for book purposes may
include short-term capital gains, which are included as ordinary income for tax
purposes.
 
    For the year ended October 31, 1998, 100.0% of the income distributions made
by the Trust were exempt from federal income taxes. In January, 1999, the Trust
will provide tax information to shareholders for the 1998 calendar year.
 
2. INVESTMENT ADVISORY AGREEMENT AND OTHER TRANSACTIONS WITH AFFILIATES

Under the terms of the Trust's Investment Advisory Agreement, Van Kampen
Investment Advisory Corp. (the "Adviser") will provide investment advice and
facilities to the Trust for an annual fee payable monthly of .65% of the average
net assets of the Trust. In addition, the Trust will pay a monthly
administrative fee to Van Kampen Funds Inc. or its affiliates (collectively "Van
Kampen"), the Trust's Administrator, at an annual rate of .20% of the average
net assets of the Trust. The administrative services provided by the
Administrator include record keeping and reporting responsibilities with respect
to the Trust's portfolio and preferred shares and providing certain services to
shareholders.

    For the year ended October 31, 1998, the Trust recognized expenses of
approximately $9,700 representing legal services provided by Skadden, Arps,
Slate, Meagher & Flom (Illinois), counsel to the Trust, of which a trustee of
the Trust is an affiliated person.
 
                                       22
<PAGE>   24
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
    For the year ended October 31, 1998, the Trust recognized expenses of
approximately $126,600 representing Van Kampen's cost of providing accounting
and legal services to the Trust.
 
    Certain officers and trustees of the Trust are also officers and directors
of Van Kampen. The Trust does not compensate its officers or trustees who are
officers of Van Kampen.
 
    The Trust provides deferred compensation and retirement plans for its
trustees who are not officers of Van Kampen. Under the deferred compensation
plan, trustees may elect to defer all or a portion of their compensation to a
later date. Benefits under the retirement plan are payable for a ten-year period
and are based upon each trustee's years of service to the Trust. The maximum
annual benefit per trustee under the plan is $2,500.
 
3. INVESTMENT TRANSACTIONS

During the period, the cost of purchases and proceeds from sales of investments,
excluding short-term investments, were $119,866,097 and $122,159,796,
respectively.
 
4. DERIVATIVE FINANCIAL INSTRUMENTS

A derivative financial instrument in very general terms refers to a security
whose value is "derived" from the value of an underlying asset, reference rate
or index.
 
    The Trust has a variety of reasons to use derivative instruments, such as to
attempt to protect the Trust against possible changes in the market value of its
portfolio and to manage the portfolio's effective yield, maturity and duration.
All of the Trust's portfolio holdings, including derivative instruments, are
marked to market each day with the change in value reflected in unrealized
appreciation/depreciation. Upon disposition, a realized gain or loss is
recognized accordingly, except when taking delivery of a security underlying a
futures contract. In this instance, the recognition of gain or loss is postponed
until the disposal of the security underlying the futures contract.
 
    Summarized below are the types of derivative financial instruments used by
the Trust.
 
A. FUTURES CONTRACTS--A futures contract is an agreement involving the delivery
of a particular asset on a specified future date at an agreed upon price. The
Trust generally invests in futures on U.S. Treasury Bonds and the Municipal Bond
Index, and typically closes the contracts prior to the delivery date. These
contracts are generally used to manage the portfolio's effective maturity and
duration. Upon entering into futures contracts, the Trust maintains, in a
segregated account with its custodian, securities with a value equal to its
obligation under the futures contracts. During the period the futures contract
is
 
                                       23
<PAGE>   25
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
open, payments are received from or made to the broker based upon changes in the
value of the contract (the variation margin).
 
    Transactions in futures contracts, each with a par value of $100,000, for
the year ended October 31, 1998, were as follows:
 
<TABLE>
<CAPTION>
                                                           CONTRACTS
- --------------------------------------------------------------------
<S>                                                          <C>
Outstanding at October 31, 1997..........................        150
Futures Opened...........................................        -0-
Futures Closed...........................................       (150)
                                                              ------
Outstanding at October 31, 1998..........................        -0-
                                                              ======
</TABLE>
 
B. INDEXED SECURITIES--These instruments are identified in the portfolio of
investments. Their price may be more volatile than the price of a comparable
fixed rate security.
 
    An Embedded Swap security includes a swap component such that the fixed
coupon component of the underlying bond is adjusted by the difference between
the securities fixed swap rate and the floating swap index. The Trust invests in
these instruments as a hedge against a rise in the short-term interest rates
which it pays on its preferred shares.
 
5. PREFERRED SHARES

The Trust has outstanding 3,000 Auction Preferred Shares ("APS") in two series
of 1,500 shares each. Dividends are cumulative and the dividend rate on each
series is currently reset every 28 days through an auction process. The average
rate in effect on October 31, 1998 was 3.300%. During the year ended October 31,
1998, the rates ranged from 3.299% to 3.900%.
 
    The Trust pays annual fees equivalent to .25% of the preferred share
liquidation value for the remarketing efforts associated with the preferred
auctions. These fees are included as a component of Preferred Share Maintenance
expense.
 
    The APS are redeemable at the option of the Trust in whole or in part at the
liquidation value of $50,000 per share plus accumulated and unpaid dividends.
The Trust is subject to certain asset coverage tests and the APS are subject to
mandatory redemption if the tests are not met.
 
6. YEAR 2000 COMPLIANCE (UNAUDITED)
 
Van Kampen utilizes a number of computer programs across its entire operation
relying on both internal software systems as well as external software systems
provided by third parties. In 1996 Van Kampen initiated a CountDown 2000 Project
to review both the
 
                                       24
<PAGE>   26
                   NOTES TO FINANCIAL STATEMENTS (CONTINUED)
 
                                October 31, 1998
- --------------------------------------------------------------------------------
 
internal systems and external vendor connections. The goal of this project is to
position its business to continue unaffected as a result of the century change.
At this time, there can be no assurance that the steps taken will be sufficient
to avoid any adverse impact to the Trust, but Van Kampen does not anticipate
that the move to Year 2000 will have a material impact on its ability to
continue to provide the Trust with service at current levels. In addition, it is
possible that the securities markets in which the Trust invests may be
detrimentally affected by computer failures throughout the financial services
industry beginning January 1, 2000. Improperly functioning trading systems may
result in settlement problems and liquidity issues.
 
                                       25
<PAGE>   27
 
                       REPORT OF INDEPENDENT ACCOUNTANTS
 
The Board of Trustees and Shareholders of
Van Kampen Municipal Opportunity Trust:
 
We have audited the accompanying statement of assets and liabilities of Van
Kampen Municipal Opportunity Trust (the "Trust"), including the portfolio of
investments, as of October 31, 1998, and the related statement of operations for
the year then ended, the statement of changes in net assets for each of the two
years in the period then ended, and the financial highlights for each of the
periods presented. These financial statements and financial highlights are the
responsibility of the Trust's management. Our responsibility is to express an
opinion on these financial statements and financial highlights based on our
audits.
 
    We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements and financial
highlights are free of material misstatement. An audit includes examining, on a
test basis, evidence supporting the amounts and disclosures in the financial
statements. Our procedures included confirmation of securities owned as of
October 31, 1998 by correspondence with the custodian and brokers. An audit also
includes assessing the accounting principles used and significant estimates made
by management, as well as evaluating the overall financial statement
presentation. We believe that our audits provide a reasonable basis for our
opinion.
 
    In our opinion, the financial statements and financial highlights referred
to above present fairly, in all material respects, the financial position of Van
Kampen Municipal Opportunity Trust as of October 31, 1998, the results of its
operations for the year then ended, the changes in its net assets for each of
the two years in the period then ended, and the financial highlights for each of
the periods presented, in conformity with generally accepted accounting
principles.
 
                                                           KPMG Peat Marwick LLP
Chicago, Illinois
December 1, 1998
 
                                       26
<PAGE>   28
 
                           DIVIDEND REINVESTMENT PLAN
 
The Trust offers a dividend reinvestment plan (the "Plan") pursuant to which
Common Shareholders may elect to have dividends and capital gains distributions
reinvested in Common Shares of the Trust. The Trust declares dividends out of
net investment income, and will distribute annually net realized capital gains,
if any. Common Shareholders may join or withdraw from the Plan at any time.
 
    If you decide to participate in the Plan, State Street Bank and Trust
Company, as your Plan Agent, will automatically invest your dividends and
capital gains distributions in Common Shares of the Trust for your account.
 
HOW TO PARTICIPATE
 
If you wish to participate and your shares are held in your own name, call
1-800-341-2929 for more information and a Plan brochure. If your shares are held
in the name of a brokerage firm, bank, or other nominee, you should contact your
nominee to see if it would participate in the Plan on your behalf. If you wish
to participate in the Plan, but your brokerage firm, bank or nominee is unable
to participate on your behalf, you should request that your shares be re-
registered in your own name which will enable your participation in the Plan.
 
HOW THE PLAN WORKS
 
Participants in the Plan will receive the equivalent in Common Shares valued on
the valuation date, generally at the lower of market price or net asset value,
except as specified below. The valuation date will be the dividend or
distribution payment date or, if that date is not a trading day on the national
securities exchange or market system on which the Common Shares are listed for
trading, the next preceding trading day. If the market price per Common Share on
the valuation date equals or exceeds net asset value per Common Share on that
date, the Trust will issue new Common Shares to participants valued at the
higher of net asset value or 95% of the market price on the valuation date. In
the foregoing situation, the Trust will not issue Common Shares under the Plan
below net asset value. If net asset value per Common Share on the valuation date
exceeds the market price per Common Share on that date, of if the Board of
Trustees should declare a dividend or capital gains distribution payable to the
Common Shareholders only in cash, participants in the Plan will be deemed to
have elected to receive Common Shares from the Trust valued at the market price
on that date. Accordingly, in this circumstance, the Plan Agent will, as agent
for the participants, buy the Trust's Common Shares in the open market for the
participants' accounts on or shortly after the payment date. If, before the Plan
Agent has completed its purchases, the market price exceeds the net asset value
per share of the Common Shares, the average per share purchase price paid by the
Plan Agent may exceed the net asset value of the Trust's Common Shares,
resulting in the acquisition of fewer Common Shares than if the dividend or
distribution had been paid in Common Shares issued by the Trust. All
reinvestments are in full and fractional Common Shares and are carried to three
decimal places.
 
    Experience under the Plan may indicate that changes are desirable.
Accordingly, the Trust reserves the right to amend or terminate the Plan as
applied to any dividend or distribution paid subsequent to written notice of the
changes sent to all Common Shareholders of the Trust at least 90 days before the
record date for the dividend or distribution. The Plan also may be amended or
terminated by the Plan Agent by at least 90 days written notice to all Common
Shareholders of the Trust.
 
COSTS OF THE PLAN
 
The Plan Agent's fees for the handling of the reinvestment of dividends and
distributions will be paid by the Trust. However, each participant will pay a
pro rata share of brokerage commissions incurred with respect to the Plan
Agent's open market purchases in connection with the reinvestment of dividends
and distributions. No other charges will be made to participants for reinvesting
dividends or capital gains distributions, except for certain brokerage
commissions, as described above.
 
TAX IMPLICATIONS
 
You will receive tax information annually for your personal records and to help
you prepare your federal income tax return. The automatic reinvestment of
dividends and capital gains distributions does not relieve you of any income tax
which may be payable on dividends or distributions.
 
RIGHT TO WITHDRAW
 
Plan participants may withdraw at any time by calling 1-800-341-2929 or by
writing State Street Bank and Trust Company, P.O. Box 8200, Boston, MA 02266-
8200. If you withdraw, you will receive, without charge, a share certificate
issued in your name for all full Common Shares credited to your account under
the Plan and a cash payment will be made for any fractional Common Share
credited to your account under the Plan. You may again elect to participate in
the Plan at any time by calling 1-800-341-2929 or writing to the Trust at:

                             Van Kampen Funds Inc.
                             Attn: Closed-End Funds
                              2800 Post Oak Blvd.
                               Houston, TX 77056
 
                                       27
<PAGE>   29
 
                     VAN KAMPEN MUNICIPAL OPPORTUNITY TRUST
 
BOARD OF TRUSTEES
 
DAVID C. ARCH
ROD DAMMEYER
HOWARD J KERR
DENNIS J. MCDONNELL*--Chairman
STEVEN MULLER
THEODORE A. MYERS
DON G. POWELL*
HUGO F. SONNENSCHEIN
WAYNE W. WHALEN*
 
OFFICERS
 
DENNIS J. MCDONNELL*
  President
 
RONALD A. NYBERG*
  Vice President and Secretary
 
JOHN L. SULLIVAN*
  Vice President, Treasurer and Chief
  Financial Officer
 
CURTIS W. MORELL*
  Vice President and Chief Accounting Officer
 
TANYA M. LODEN*
  Controller
 
PETER W. HEGEL*
EDWARD C. WOOD, III*
  Vice Presidents


INVESTMENT ADVISER
 
VAN KAMPEN INVESTMENT
ADVISORY CORP.
1 Parkview Plaza
P.O. Box 5555
Oakbrook Terrace, Illinois 60181-5555
 
CUSTODIAN AND TRANSFER AGENT
 
STATE STREET BANK
AND TRUST COMPANY
225 Franklin Street
P.O. Box 1713
Boston, Massachusetts 02105
 
LEGAL COUNSEL
 
SKADDEN, ARPS, SLATE,
MEAGHER & FLOM (ILLINOIS)
333 West Wacker Drive
Chicago, Illinois 60606
 
INDEPENDENT ACCOUNTANTS
 
KPMG PEAT MARWICK LLP
Peat Marwick Plaza
303 East Wacker Drive
Chicago, Illinois 60601
 
* "Interested" persons of the Trust, as defined in the Investment Company Act of
  1940.

(C) Van Kampen Funds Inc., 1998 All rights reserved.

(SM) denotes a service mark of Van Kampen Funds Inc.
 
                                       28
<PAGE>   30
 
                          RESULTS OF SHAREHOLDER VOTES
 
    The Annual Meeting of Shareholders of the Trust was held on July 28, 1998,
where shareholders voted on the election of trustees and the selection of
independent public accountants.
 
    1) With regard to the election of the following trustees by the preferred
shareholders of the Trust:
 
<TABLE>
<CAPTION>
                                                         # OF SHARES
                                                     -------------------
                                                     IN FAVOR   WITHHELD
- ------------------------------------------------------------------------
<S>                                                  <C>        <C>
Theodore A. Myers...................................   2,706        1
</TABLE>
 
    2) With regard to the election of the following trustees by the common
shareholders of the Trust:
 
<TABLE>
<CAPTION>
                                                       # OF SHARES
                                                  ---------------------
                                                   IN FAVOR    WITHHELD
- -----------------------------------------------------------------------
<S>                                               <C>          <C>
Don G. Powell.................................... 14,169,865   198,968
Hugo F. Sonnenschein............................. 14,157,507   211,326
</TABLE>
 
The other trustees of the Trust whose terms did not expire in 1998 are David C.
Arch, Rod Dammeyer, Howard J Kerr, Dennis J. McDonnell, Steven Muller and Wayne
W. Whalen.
 
    3) With regard to the ratification of KPMG Peat Marwick LLP as independent
public accountants for the Trust, 14,146,867 shares voted in favor of the
proposal, 54,067 shares voted against and 170,606 shares abstained.
 
                                       29

<TABLE> <S> <C>

<ARTICLE> 6
<SERIES>
   <NUMBER> 11
   <NAME> MUNICIPAL OPPORTUNITY TRUST
<MULTIPLIER> 1
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          OCT-31-1998
<PERIOD-START>                             NOV-01-1997
<PERIOD-END>                               OCT-31-1998
<INVESTMENTS-AT-COST>                      385,499,855
<INVESTMENTS-AT-VALUE>                     429,347,422
<RECEIVABLES>                                8,970,027
<ASSETS-OTHER>                                   7,085
<OTHER-ITEMS-ASSETS>                                 0
<TOTAL-ASSETS>                             438,324,534
<PAYABLE-FOR-SECURITIES>                    17,192,561
<SENIOR-LONG-TERM-DEBT>                              0
<OTHER-ITEMS-LIABILITIES>                      837,180
<TOTAL-LIABILITIES>                         18,029,741
<SENIOR-EQUITY>                            150,000,000
<PAID-IN-CAPITAL-COMMON>                   226,873,287
<SHARES-COMMON-STOCK>                       15,352,891
<SHARES-COMMON-PRIOR>                       15,352,891
<ACCUMULATED-NII-CURRENT>                    1,425,622
<OVERDISTRIBUTION-NII>                               0
<ACCUMULATED-NET-GAINS>                    (1,851,683)
<OVERDISTRIBUTION-GAINS>                             0
<ACCUM-APPREC-OR-DEPREC>                    43,847,567
<NET-ASSETS>                               420,294,793
<DIVIDEND-INCOME>                                    0
<INTEREST-INCOME>                           23,559,416
<OTHER-INCOME>                                       0
<EXPENSES-NET>                             (4,287,084)
<NET-INVESTMENT-INCOME>                     19,272,332
<REALIZED-GAINS-CURRENT>                        90,175
<APPREC-INCREASE-CURRENT>                    9,773,428
<NET-CHANGE-FROM-OPS>                       29,135,935
<EQUALIZATION>                                       0
<DISTRIBUTIONS-OF-INCOME>                 (19,153,748)
<DISTRIBUTIONS-OF-GAINS>                             0
<DISTRIBUTIONS-OTHER>                                0
<NUMBER-OF-SHARES-SOLD>                              0
<NUMBER-OF-SHARES-REDEEMED>                          0
<SHARES-REINVESTED>                                  0
<NET-CHANGE-IN-ASSETS>                       9,982,187
<ACCUMULATED-NII-PRIOR>                      1,307,038
<ACCUMULATED-GAINS-PRIOR>                  (1,941,858)
<OVERDISTRIB-NII-PRIOR>                              0
<OVERDIST-NET-GAINS-PRIOR>                           0
<GROSS-ADVISORY-FEES>                        2,703,320
<INTEREST-EXPENSE>                                   0
<GROSS-EXPENSE>                              4,287,084
<AVERAGE-NET-ASSETS>                       265,980,637
<PER-SHARE-NAV-BEGIN>                           16.955
<PER-SHARE-NII>                                  1.255
<PER-SHARE-GAIN-APPREC>                          0.643
<PER-SHARE-DIVIDEND>                           (1.248)
<PER-SHARE-DISTRIBUTIONS>                        0.000
<RETURNS-OF-CAPITAL>                             0.000
<PER-SHARE-NAV-END>                             17.605
<EXPENSE-RATIO>                                   1.61
<AVG-DEBT-OUTSTANDING>                               0
<AVG-DEBT-PER-SHARE>                                 0
        

</TABLE>


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