Year	current US$
1967	200000.00298023198
1968	250000
1969	119999.997317791
1970	280000.001192093
1971	500000
1972	1159999.9666214
1973	4719999.79019165
1974	6900000.09536743
1975	8449999.80926514
1976	10189999.5803833
1977	10739999.7711182
1978	12970000.2670288
1979	14800000.1907349
1980	13199999.8092651
1981	15170000.076293899
1982	13180000.3051758
1983	11640000.3433228
1984	11000000
1985	7329999.92370605
1986	16290000.9155273
1987	14220000.2670288
1988	21129999.1607666
1989	17430000.3051758
1990	25069999.6948242
1991	13560000.4196167
1992	17440000.5340576
1993	14289999.961853001
1994	9449999.80926514
1995	6460000.03814697
1996	15710000.038146999
1997	8449999.80926514
1998	3799999.95231628
1999	1149999.97615814
2000	699999.988079071
2001	349999.99403953605
2002	589999.973773956
2003	610000.014305115
2004	430000.00715255697
2005	310000.002384186
2006	1629999.99523163
2007	3660000.08583069
2008	4329999.92370605
2009	2950000.04768372
2010	4679999.82833862
2011	2109999.89509583
2012	7159999.84741211
2013	6420000.07629395
2014	39999.9991059303
2015	300000.011920929
2016	270000.010728836
2017	250000
2018	140000.000596046
2019	109999.999403954
2020	39999.9991059303
2021	600000.023841858
2022	289999.99165535