Year	current US$
1960	9999.99977648258
1964	9999.99977648258
1968	9999.99977648258
1970	9999.99977648258
1971	9999.99977648258
1973	19999.9995529652
1974	9999.99977648258
1975	39999.9991059303
1977	9999.99977648258
1978	79999.9982118607
1979	9999.99977648258
1981	19999.9995529652
1982	119999.997317791
1983	1720000.02861023
1984	159999.99642372102
1985	670000.016689301
1986	2400000.09536743
1987	2210000.03814697
1988	7510000.228881841
1989	7309999.94277954
1990	26379999.1607666
1991	13590000.1525879
1992	8050000.19073486
1993	12199999.8092651
1994	14569999.6948242
1995	22290000.915527303
1996	1799999.95231628
1997	3289999.96185303
1998	17829999.9237061
1999	8960000.03814697
2000	19069999.6948242
2001	12760000.2288818
2002	4670000.07629395
2003	7780000.20980835
2004	19620000.8392334
2005	23510000.2288818
2006	17079999.9237061
2007	4579999.92370605
2008	6099999.90463257
2009	4480000.01907349
2010	860000.014305115
2011	2670000.07629395
2012	3410000.08583069
2013	4059999.94277954
2014	8890000.34332275
2015	1379999.99523163
2016	1179999.94754791
2017	270000.010728836
2018	159999.99642372102
2019	1200000.04768372
2020	2680000.0667572
2021	70000.0002980232
2022	-519999.980926514