<TABLE> <S> <C>

<ARTICLE> 5
       
<S>                                            <C>               <C>               <C>               <C>              <C>         
<PERIOD-TYPE>                                         YEAR              YEAR              YEAR              YEAR             YEAR
<FISCAL-YEAR-END>                              DEC-31-1996       DEC-31-1995       DEC-31-1994       DEC-31-1993      DEC-31-1992
<PERIOD-END>                                   DEC-31-1996       DEC-31-1995       DEC-31-1994       DEC-31-1993      DEC-31-1992
<CASH>                                           2,430,937           757,381         3,588,037         6,630,819        3,040,096
<SECURITIES>                                     1,171,079         3,838,614         1,899,268                 0       17,787,781
<RECEIVABLES>                                       23,125            59,367            31,962            29,950           21,230
<ALLOWANCES>                                             0                 0                 0                 0                0
<INVENTORY>                                              0                 0                 0                 0                0
<CURRENT-ASSETS>                                 3,225,123         4,157,718         4,435,582         7,614,428        4,440,109
<PP&E>                                          27,453,777        27,290,822        27,155,538        27,065,131       27,044,392
<DEPRECIATION>                                  (5,664,440)       (4,989,699)       (4,285,544)       (3,505,401)      (2,666,981)
<TOTAL-ASSETS>                                  28,106,422        29,795,170        31,262,819        33,356,335       48,954,681
<CURRENT-LIABILITIES>                            1,421,530         1,399,678         1,280,057         1,157,141        1,154,478
<BONDS>                                                  0                 0                 0                 0                0
<COMMON>                                                 0                 0                 0                 0                0
<PREFERRED-MANDATORY>                                    0                 0                 0                 0                0
<PREFERRED>                                              0                 0                 0                 0                0
<OTHER-SE>                                      25,378,723        27,103,805        28,578,559        30,418,340       45,248,656
<TOTAL-LIABILITY-AND-EQUITY>                    28,106,422        29,795,170        31,262,819        33,356,335       48,954,681
<SALES>                                                  0                 0                 0                 0                0
<TOTAL-REVENUES>                                 5,276,996         5,158,118         4,964,476         5,328,844        6,350,842
<CGS>                                                    0                 0                 0                 0                0
<TOTAL-COSTS>                                            0                 0                 0                 0                0
<OTHER-EXPENSES>                                 3,678,376         3,432,024         3,526,029         3,674,507        4,687,491
<LOSS-PROVISION>                                         0                 0                 0                 0                0
<INTEREST-EXPENSE>                                       0                 0                 0                 0                0
<INCOME-PRETAX>                                  1,599,228         1,728,314         1,442,029         1,660,580        1,676,657
<INCOME-TAX>                                             0                 0                 0                 0                0
<INCOME-CONTINUING>                                      0                 0                 0                 0                0
<DISCONTINUED>                                           0                 0                 0                 0                0
<EXTRAORDINARY>                                          0                 0                 0                 0        3,953,659
<CHANGES>                                                0                 0                 0                 0                0
<NET-INCOME>                                     1,599,228         1,728,314         1,442,029         1,660,580        5,630,316
<EPS-PRIMARY>                                            0                 0                 0                 0                0
<EPS-DILUTED>                                            0                 0                 0                 0                0
        

</TABLE>