Year	current US$
1977	119999.997317791
1980	159999.99642372102
1981	100000.00149011599
1982	189999.99761581398
1983	219999.998807907
1984	180000.00715255702
1985	170000.00178813902
1986	109999.999403954
1987	119999.997317791
1988	70000.0002980232
1989	50000.0007450581
1990	170000.00178813902
1991	180000.00715255702
1992	219999.998807907
1993	100000.00149011599
1994	129999.995231628
1995	129999.995231628
1996	100000.00149011599
1997	50000.0007450581
1998	-9999.99977648258
1999	79999.9982118607
2000	19999.9995529652
2001	50000.0007450581
2002	29999.999329447703