<ARTICLE>                   5
       
                                                   
<PERIOD-TYPE>                     6-MOS         9-MOS        12-MOS 
<FISCAL-YEAR-END>           DEC-31-1996   DEC-31-1996   DEC-31-1996 
<PERIOD-END>                JUN-30-1996   SEP-30-1996   DEC-31-1996 
<CASH>                          $11,273       $10,232       $ 8,878 
<SECURITIES>                          0             0             0 
<RECEIVABLES>                    11,972        13,226        14,557 
<ALLOWANCES>                        245           244           318 
<INVENTORY>                           0             0             0 
<CURRENT-ASSETS>                 24,675        24,955        23,477 
<PP&E>                           10,760        11,784        12,498 
<DEPRECIATION>                    3,504         4,000         4,393 
<TOTAL-ASSETS>                   69,017        73,650        74,341 
<CURRENT-LIABILITIES>             4,958         6,510         5,122 
<BONDS>                               0             0             0 
<PREFERRED-MANDATORY>                 0             0             0 
<PREFERRED>                           0             0             0 
<COMMON>                              0             0             0 
<OTHER-SE>                       57,634        64,078        65,695 
<TOTAL-LIABILITY-AND-EQUITY>     69,017        73,650        74,341 
<SALES>                               0             0             0 
<TOTAL-REVENUES>                 28,351        43,862        61,480 
<CGS>                                 0             0             0 
<TOTAL-COSTS>                    21,117        32,607        45,591 
<OTHER-EXPENSES>                  3,406         5,163         7,223 
<LOSS-PROVISION>                      0             0             0 
<INTEREST-EXPENSE>                1,489         1,552         1,649 
<INCOME-PRETAX>                   2,399         4,540         7,017 
<INCOME-TAX>                        957         1,848         2,833 
<INCOME-CONTINUING>               1,382         2,692         4,184 
<DISCONTINUED>                        0             0             0 
<EXTRAORDINARY>                       0             0             0 
<CHANGES>                             0             0             0 
<NET-INCOME>                      1,382         2,692         3,477 
<EPS-PRIMARY>                      0.24          0.37          0.43 
<EPS-DILUTED>                      0.20          0.33          0.39