<ARTICLE> 5 <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> DEC-31-1999 <CASH> 10,193,277 <SECURITIES> 108,544 <RECEIVABLES> 116,544 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 10,418,365 <PP&E> 7,967,087 <DEPRECIATION> (6,686,836) <TOTAL-ASSETS> 13,052,016 <CURRENT-LIABILITIES> 5,413,480 <BONDS> 656,454 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 0 <OTHER-SE> 6,982,082 <TOTAL-LIABILITY-AND-EQUITY> 13,052,016 <SALES> 0 <TOTAL-REVENUES> 2,634,958 <CGS> 0 <TOTAL-COSTS> 0 <OTHER-EXPENSES> 1,114,420 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 50,389 <INCOME-PRETAX> 1,470,149 <INCOME-TAX> 0 <INCOME-CONTINUING> 1,470,149 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,470,149 <EPS-BASIC> 0 <EPS-DILUTED> 0