Year	current US$
1974	119999.997317791
1980	119999.997317791
1981	159999.99642372102
1982	259999.990463257
1983	569999.992847443
1984	319999.99284744303
1985	109999.999403954
1986	239999.994635582
1987	509999.99046325695
1988	750000
1989	1649999.97615814
1990	1799999.95231628
1991	2039999.96185303
1992	6590000.15258789
1993	639999.985694885
1994	709999.978542328
1995	1179999.94754791
1996	819999.992847443
1997	400000.00596046395
1998	310000.002384186
1999	340000.00357627904
2000	300000.011920929
2001	469999.998807907
2002	310000.002384186
2003	219999.998807907
2004	349999.99403953605
2005	569999.992847443
2006	649999.976158142
2007	319999.99284744303
2008	469999.998807907
2009	519999.980926514
2010	990000.009536743
2011	1039999.96185303
2012	930000.007152557
2013	850000.023841858
2014	1059999.9427795399
2015	870000.004768372
2016	550000.011920929
2017	600000.023841858
2018	430000.00715255697
2019	389999.98569488496
2020	430000.00715255697
2021	129999.995231628
2022	319999.99284744303