<TABLE> <S> <C>
<PAGE>
<ARTICLE> 9
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 6-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-1999
<PERIOD-START> JAN-01-2000 JAN-01-1999
<PERIOD-END> JUN-30-2000 JUN-30-1999
<CASH> 207,840 172,457
<INT-BEARING-DEPOSITS> 36,342 23,007
<FED-FUNDS-SOLD> 34,550 63,838
<TRADING-ASSETS> 37,660 82,666
<INVESTMENTS-HELD-FOR-SALE> 656,163 753,423
<INVESTMENTS-CARRYING> 1,926,151 1,696,891
<INVESTMENTS-MARKET> 1,811,414 1,639,168
<LOANS> 4,266,967 3,719,854
<ALLOWANCE> 62,064 58,389
<TOTAL-ASSETS> 7,438,888 6,737,423
<DEPOSITS> 4,745,388 4,450,268
<SHORT-TERM> 1,887,684 718,414
<LIABILITIES-OTHER> 119,600 180,166
<LONG-TERM> 48,969 792,878
587,332 545,794
0 0
<COMMON> 0 0
<OTHER-SE> 0 0
<TOTAL-LIABILITIES-AND-EQUITY> 7,438,888 6,737,423
<INTEREST-LOAN> 181,597 149,556
<INTEREST-INVEST> 85,503 73,773
<INTEREST-OTHER> 3,660 3,987
<INTEREST-TOTAL> 270,760 227,316
<INTEREST-DEPOSIT> 96,816 76,677
<INTEREST-EXPENSE> 51,813 35,327
<INTEREST-INCOME-NET> 122,131 115,312
<LOAN-LOSSES> 4,217 6,530
<SECURITIES-GAINS> 327 (2,116)
<EXPENSE-OTHER> 81,769 79,364
<INCOME-PRETAX> 86,713 75,674
<INCOME-PRE-EXTRAORDINARY> 86,713 75,674
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 58,969 50,952
<EPS-BASIC> .54 .48
<EPS-DILUTED> .53 .47
<YIELD-ACTUAL> 3.72 4.10
<LOANS-NON> 1,377 1,601
<LOANS-PAST> 6,142 4,395
<LOANS-TROUBLED> 0 0
<LOANS-PROBLEM> 0 483
<ALLOWANCE-OPEN> 62,555 55,881
<CHARGE-OFFS> 6,556 6,190
<RECOVERIES> 1,848 2,168
<ALLOWANCE-CLOSE> 62,064 58,389
<ALLOWANCE-DOMESTIC> 62,064 58,389
<ALLOWANCE-FOREIGN> 0 0
<ALLOWANCE-UNALLOCATED> 0 0
</TABLE>