Year	current US$
1970	230000.004172325
1971	239999.994635582
1972	200000.00298023198
1973	259999.990463257
1974	280000.001192093
1975	340000.00357627904
1976	189999.99761581398
1977	540000.021457672
1978	219999.998807907
1979	349999.99403953605
1980	280000.001192093
1981	610000.014305115
1982	699999.988079071
1983	850000.023841858
1984	839999.973773956
1985	850000.023841858
1986	1159999.9666214
1987	1210000.03814697
1988	949999.988079071
1989	1310000.0023841849
1990	4199999.988079073
1991	4459999.9487400055
1992	4870000.04574656
1993	5450000.001117583
1994	6660000.003874294
1995	10240000.002086166
1996	9430000.022053713
1997	10719999.969005581
1998	13680000.051856045
1999	13880000.013858078
2000	12529999.867081646
2001	13739999.935030937
2002	12850000.023841854
2003	16819999.881088745
2004	15690000.027418138
2005	16099999.99403954
2006	18059999.82357025
2007	17229999.84771014
2008	14229999.937117098