Year	current US$
1990	1700000.04768372
1991	750000
1992	1149999.97615814
1993	1019999.98092651
1994	560000.002384186
1995	289999.99165535
1996	109999.999403954
1997	709999.978542328
1998	689999.997615814
1999	800000.011920929
2000	720000.028610229
2001	589999.973773956
2002	500000
2003	490000.009536743
2004	660000.026226044