Year	current US$
1991	250000
1992	319999.99284744303
1993	239999.994635582
1994	29999.999329447703
1995	19999.9995529652
1996	19999.9995529652
1997	39999.9991059303
1998	19999.9995529652
1999	9999.99977648258
2001	39999.9991059303
2003	9999.99977648258
2004	90000.0035762787