Year	current US$
1972	19999.9995529652
1980	9999.99977648258
1981	439999.997615814
1982	670000.016689301
1983	1029999.97138977
1984	769999.980926514
1985	1230000.01907349
1986	1019999.98092651
1987	1200000.04768372
1988	1000000
1989	1350000.02384186
1990	1250000
1991	1500000
1992	1340000.0333786
1993	1850000.02384186
1994	1470000.02861023
1995	2930000.0667572
1996	1419999.95708466
1998	1299999.95231628
1999	2160000.08583069
2000	2450000.04768372
2001	2009999.9904632599
2002	2500000
2003	2259999.99046326
2004	2089999.9141693101
2005	2519999.98092651
2006	1649999.97615814
2007	2039999.96185303
2008	540000.021457672