Year	current US$
1977	19999.9995529652
1980	190000.0069290396
1981	140000.000596046
1982	59999.9986588955
1986	79999.9982118607
1987	79999.9982118607
1988	9999.99977648258
1989	9999.99977648258
1990	829999.988898635
1991	929999.9829381707
1992	289999.99165534956
1993	300000.00260770286
1994	240000.00022351736
1995	759999.9923259012
1996	670000.0036507851
1997	1160000.0075995922
1998	690000.0069290393
1999	780000.0160932537
2000	560000.0005215412
2001	939999.9864399435
2002	869999.9898672097
2003	889999.981969595