Year	current US$
1980	2349999.90463257
1981	1940000.0572204601
1982	2460000.03814697
1983	2200000.04768372
1984	7010000.228881841
1985	2500000
1986	3640000.10490417
1987	1230000.01907349
1988	1860000.01430511
1989	1370000.00476837
1990	6219999.79019165
1991	6239999.771118159
1992	3400000.09536743
1993	2609999.89509583
1994	7199999.80926514
1995	7800000.19073486
1996	10100000.3814697
1997	9460000.03814697
1998	10149999.6185303
1999	9739999.77111816
2000	13880000.1144409
2001	10050000.1907349
2002	11460000.038146999
2003	13850000.3814697
2004	18229999.5422363