<TABLE> <S> <C>

<PAGE>
<ARTICLE> 7
<RESTATED> 
       
<S>                             <C>                <C>                 <C>                <C>                <C>
<PERIOD-TYPE>                   YEAR               YEAR                3-MOS              6-MOS              9-MOS
<FISCAL-YEAR-END>                      DEC-31-1996         DEC-31-1995        DEC-31-1996        DEC-31-1996         DEC-31-1996
<PERIOD-START>                         JAN-01-1996         JAN-01-1995        JAN-01-1996        JAN-01-1996         JAN-01-1996
<PERIOD-END>                           DEC-31-1996         DEC-31-1995        MAR-31-1996        JUN-30-1996         SEP-30-1996
<DEBT-HELD-FOR-SALE>                       712,342             693,961            674,651            657,237             667,587
<DEBT-CARRYING-VALUE>                       53,353              56,674             58,503             56,076              54,390
<DEBT-MARKET-VALUE>                         53,113              57,816             58,154             54,854              53,489
<EQUITIES>                                  37,626              36,525             35,028             31,493              38,652
<MORTGAGE>                                       0                   0                  0                  0                   0
<REAL-ESTATE>                                    0                   0                  0                  0                   0
<TOTAL-INVEST>                             852,799             835,214            816,321            783,679             799,113
<CASH>                                      12,125               6,919              1,515              8,091               8,001
<RECOVER-REINSURE>                               0              70,155             64,579             66,545              64,255
<DEFERRED-ACQUISITION>                      20,752              20,339             20,587             21,313              21,870
<TOTAL-ASSETS>                           1,242,724           1,115,433          1,100,770          1,100,952           1,118,729
<POLICY-LOSSES>                            620,078             517,552            506,934            504,149             502,683
<UNEARNED-PREMIUMS>                        127,209             119,591            122,772            129,926             134,810
<POLICY-OTHER>                                   0                   0                  0             10,125               9,215
<POLICY-HOLDER-FUNDS>                        9,109              15,491             13,965             13,060              11,486
<NOTES-PAYABLE>                             88,861              83,135             83,487             81,675              86,597
<PREFERRED-MANDATORY>                            0                   0                  0                  0                   0
<PREFERRED>                                      0                   0                  0                  0                   0
<COMMON>                                    24,447              24,310             24,332             24,365              24,415
<OTHER-SE>                                 313,056             306,122            300,823            300,254             306,650
<TOTAL-LIABILITY-AND-EQUITY>             1,242,724           1,115,433          1,100,770          1,100,952           1,118,729
<PREMIUMS>                                 452,856             437,513            112,237            220,492             332,984
<INVESTMENT-INCOME>                         51,154              46,150             12,054             24,890              37,464
<INVESTMENT-GAINS>                          10,807               3,621              4,272              8,050               8,228
<OTHER-INCOME>                              41,554              31,736              5,985             14,795              26,617
<BENEFITS>                                 314,700             325,589             73,415            147,844             225,772
<UNDERWRITING-AMORTIZATION>                 84,093              81,846             22,364             42,251              62,692
<UNDERWRITING-OTHER>                        53,413              39,882             12,126             25,373              37,358
<INCOME-PRETAX>                             57,117              29,422             18,914             35,065              48,811
<INCOME-TAX>                                19,517               9,700              6,514             11,965              16,611
<INCOME-CONTINUING>                         37,600              19,722             12,400             23,100              32,200
<DISCONTINUED>                                   0            (13,122)                  0                  0                   0
<EXTRAORDINARY>                                  0                   0                  0                  0                   0
<CHANGES>                                        0                   0                  0                  0                   0
<NET-INCOME>                                37,600               6,600             12,400             23,100              32,200
<EPS-PRIMARY>                                 2.14                0.36               0.70               1.31                1.83
<EPS-DILUTED>                                 2.12                0.36               0.70               1.30                1.81
<RESERVE-OPEN>                             463,123             462,710                  0                  0                   0
<PROVISION-CURRENT>                        318,509             327,724                  0                  0                   0
<PROVISION-PRIOR>                          (3,809)             (2,135)                  0                  0                   0
<PAYMENTS-CURRENT>                         131,061             149,688                  0                  0                   0
<PAYMENTS-PRIOR>                           185,764             175,488                  0                  0                   0
<RESERVE-CLOSE>                            526,427             463,123                  0                  0                   0
<CUMULATIVE-DEFICIENCY>                    (3,809)             (2,135)                  0                  0                   0
        


</TABLE>