Year	current US$
1974	560000.002384186
1975	1679999.94754791
1976	699999.988079071
1977	280000.001192093
1978	860000.014305115
1979	-100000.00149011599
1980	400000.00596046395
1981	180000.00715255702
1982	610000.014305115
1983	79999.9982118607
1984	100000.00149011599
1985	50000.0007450581
1986	109999.999403954
1987	100000.00149011599
1988	79999.9982118607
1989	300000.011920929
1990	540000.021457672
1991	-19999.9995529652
1992	9999.99977648258
1993	29999.999329447703
1994	39999.9991059303
1995	109999.999403954
1996	129999.995231628
1997	170000.00178813902
1998	250000
1999	200000.00298023198
2000	219999.998807907
2001	170000.00178813902
2002	330000.013113022
2003	319999.99284744303
2004	259999.990463257