<TABLE> <S> <C>

<PAGE>
<ARTICLE> 9
<RESTATED> 
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   YEAR                   3-MOS                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               DEC-31-1996             MAR-31-1996             JUN-30-1996             SEP-30-1996
<CASH>                                      19,226,456              29,095,494              26,629,731               7,833,975
<INT-BEARING-DEPOSITS>                               0                       0                       0                       0
<FED-FUNDS-SOLD>                           120,000,000              50,000,000              75,000,000              94,000,000
<TRADING-ASSETS>                                     0                       0                       0                       0
<INVESTMENTS-HELD-FOR-SALE>                271,120,964             121,177,564             181,094,653             232,492,592
<INVESTMENTS-CARRYING>                     460,009,923             296,016,758             365,511,655             379,448,852
<INVESTMENTS-MARKET>                       460,182,579             294,333,031             361,753,769             376,956,153
<LOANS>                                     66,336,889              36,721,856              86,123,750              43,801,483
<ALLOWANCE>                                    100,000                  56,047                  84,114                  84,114
<TOTAL-ASSETS>                             964,461,647             552,490,871             708,732,731             783,212,331
<DEPOSITS>                                 596,516,909             388,341,299             474,368,094             488,661,498
<SHORT-TERM>                               296,421,201              99,798,353             217,001,552             224,626,676
<LIABILITIES-OTHER>                          9,664,227               9,450,810              10,489,436              10,540,453
<LONG-TERM>                                          0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                        64,443                  64,440                  64,443                  64,443
<OTHER-SE>                                  61,794,867              54,835,969              56,809,206              59,319,261
<TOTAL-LIABILITIES-AND-EQUITY>             964,461,647             502,490,371             758,732,731             788,212,331
<INTEREST-LOAN>                              2,322,158                 418,031                 579,897                 391,833
<INTEREST-INVEST>                           34,355,269               5,546,682               7,386,430               9,768,547
<INTEREST-OTHER>                                     0                       0                       0                       0
<INTEREST-TOTAL>                            36,677,427               5,964,713               7,966,327              10,360,380
<INTEREST-DEPOSIT>                           9,271,675                 977,919               2,092,538               2,495,044
<INTEREST-EXPENSE>                          18,668,034               2,022,877               3,904,330               5,662,451
<INTEREST-INCOME-NET>                       17,944,393               3,941,836               4,061,997               4,697,929
<LOAN-LOSSES>                                   65,000                  21,047                  28,067                       0
<SECURITIES-GAINS>                             (2,488)                   2,448                   3,825                (14,694)
<EXPENSE-OTHER>                             61,935,577              14,517,448              14,912,163              15,377,305
<INCOME-PRETAX>                             12,640,533               2,347,539               3,219,106               3,354,902
<INCOME-PRE-EXTRAORDINARY>                   7,773,962               1,420,262               2,003,292               2,064,998
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                 7,773,962               1,420,262               2,003,292               2,064,990
<EPS-PRIMARY>                                     1.21                     .22                     .31                     .32
<EPS-DILUTED>                                     1.20                     .22                     .31                     .32
<YIELD-ACTUAL>                                    3.13                    4.36                    3.62                    3.34
<LOANS-NON>                                          0                       0                       0                       0
<LOANS-PAST>                                         0                       0                       0                       0
<LOANS-TROUBLED>                                     0                       0                       0                       0
<LOANS-PROBLEM>                                      0                       0                       0                       0
<ALLOWANCE-OPEN>                                35,000                  35,000                  56,047                  84,114
<CHARGE-OFFS>                                   65,000                  21,047                  28,067                       0
<RECOVERIES>                                         0                       0                       0                       0
<ALLOWANCE-CLOSE>                              100,000                  56,047                  84,114                  84,114
<ALLOWANCE-DOMESTIC>                                 0                       0                       0                       0
<ALLOWANCE-FOREIGN>                                  0                       0                       0                       0
<ALLOWANCE-UNALLOCATED>                        100,000                  56,047                  84,114                  84,114
        

</TABLE>