Year	current US$
1968	9999.99977648258
1969	9999.99977648258
1970	9999.99977648258
1974	39999.9991059303
1975	29999.999329447703
1976	70000.0002980232
1977	129999.995231628
1978	209999.993443489
1979	870000.004768372
1980	3730000.01907349
1981	2730000.01907349
1982	4469999.79019165
1983	5210000.03814697
1984	6900000.09536743
1985	4349999.90463257
1986	6559999.94277954
1987	7230000.01907349
1988	4739999.771118159
1989	7519999.98092651
1990	3730000.01907349
1991	10609999.6566772
1992	7059999.94277954
1993	3690000.05722046
1994	3680000.0667572
1995	9960000.03814697
1996	6989999.771118159
1997	2200000.04768372
1998	2140000.10490417
1999	12920000.076293899
2000	5340000.15258789
2001	2029999.97138977
2002	1769999.98092651
2003	1789999.96185303
2004	2000000
2005	2029999.97138977
2006	3079999.92370605
2007	7400000.09536743
2008	2480000.01907349
2009	3869999.8855590797
2010	6340000.15258789
2011	9909999.84741211
2012	7730000.01907349
2013	18360000.6103516
2014	20540000.915527303
2015	20770000.4577637
2016	16440000.534057599
2017	15979999.5422363
2018	18319999.6948242
2019	21969999.3133545
2020	24069999.6948242
2021	19799999.237060502
2022	16420000.076293899