<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<RESTATED>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   6-MOS                   3-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1997             DEC-31-1997             DEC-31-1996
<PERIOD-START>                             JAN-01-1997             JAN-01-1997             JAN-01-1997             JAN-01-1996
<PERIOD-END>                               SEP-30-1997             JUN-30-1997             MAR-31-1997             DEC-31-1996
<CASH>                                          32,559                  30,338                  18,840                  22,608
<INT-BEARING-DEPOSITS>                              36                       8                       1                     220
<FED-FUNDS-SOLD>                                 7,143                   1,864                     637                  84,000
<TRADING-ASSETS>                                     0                       0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                     80,928                  85,833                  89,456                  96,956
<INVESTMENTS-CARRYING>                         452,498                 473,792                 493,235                 509,663
<INVESTMENTS-MARKET>                           448,497                 463,822                 481,906                 498,573
<LOANS>                                      2,382,332               2,294,246               2,292,277               2,474,717
<ALLOWANCE>                                     39,139                  35,089                  27,906                  29,013
<TOTAL-ASSETS>                               3,162,207               3,096,213               3,044,610               3,300,262
<DEPOSITS>                                   1,624,052               1,578,206               1,655,840               1,763,967
<SHORT-TERM>                                 1,025,057               1,031,866                 885,928                 985,120
<LIABILITIES-OTHER>                             35,089                  30,135                  40,196                  90,696
<LONG-TERM>                                    294,035                 259,810                 270,512                 260,417
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                           151                     151                     150                     150
<OTHER-SE>                                     183,823                 196,045                 191,984                 199,912
<TOTAL-LIABILITIES-AND-EQUITY>               3,162,207               3,096,213               3,044,610               3,300,262
<INTEREST-LOAN>                                145,744                  95,070                  46,664                 192,443
<INTEREST-INVEST>                               33,575                  22,425                  11,492                  49,312
<INTEREST-OTHER>                                     0                       0                       0                       0
<INTEREST-TOTAL>                               179,319                 117,495                  58,156                 241,755
<INTEREST-DEPOSIT>                              56,723                  38,139                  19,594                 100,225
<INTEREST-EXPENSE>                             114,128                  74,672                  37,101                 160,773
<INTEREST-INCOME-NET>                           65,191                  42,823                  21,055                  80,982
<LOAN-LOSSES>                                    1,828                   1,177                     565                   1,898
<SECURITIES-GAINS>                                   0                       0                       0                   (800)
<EXPENSE-OTHER>                                 51,475                  31,844                  14,827                  68,402
<INCOME-PRETAX>                                 21,794                  17,133                   9,246                  19,246
<INCOME-PRE-EXTRAORDINARY>                      21,794                  17,133                   5,262                  19,246
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                    12,830                   9,766                   5,262                  10,969
<EPS-PRIMARY>                                    0.980                    0.74                    0.40                    0.80
<EPS-DILUTED>                                     0.96                    0.73                    0.39                    0.79
<YIELD-ACTUAL>                                    2.84                    2.79                    2.72                    2.57
<LOANS-NON>                                     10,922                  14,955                  13,167                  16,125
<LOANS-PAST>                                     1,069                     704                     933                      18
<LOANS-TROUBLED>                                   736                     502                     506                     509
<LOANS-PROBLEM>                                      0                       0                       0                       0
<ALLOWANCE-OPEN>                                43,175                  37,583                  29,013                  30,014
<CHARGE-OFFS>                                   (6,669)                 (4,206)                   (504)                  6,401
<RECOVERIES>                                       805                     535                      50                     642
<ALLOWANCE-CLOSE>                               39,139                  35,089                  27,906                  29,013
<ALLOWANCE-DOMESTIC>                            39,139                  35,089                  27,906                  29,013
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                              0                       0                       0                       0


</TABLE>