Year	current US$
1970	0
1971	19999.9995529652
1972	79999.9982118607
1973	579999.970272183
1974	610000.010579824
1975	3439999.9640882
1976	1719999.99880791
1977	1440000.00506639
1978	509999.994188547
1979	6330000.21241605
1980	13259999.7036159
1981	14369999.6564537
1982	11150000.387802701
1983	11970000.2633035
1984	6860000.21547079
1985	11550000.4049391
1986	17249999.9888241
1987	19109999.9044091
1988	21750000.063329898
1989	30979999.9352545
1990	46619999.025017
1991	59370000.3996491
1992	37129999.7344613
1993	44040000.5821139
1994	29760000.2028048
1995	39959999.8965859
1996	35800000.7718802
1997	32289999.408647396
1998	33389999.454841003
1999	32110000.3793836
2000	31169999.755919002
2001	24910000.026226003
2002	20410000.0746548
2003	24790000.217035398
2004	30490000.173449498
2005	48469999.0618974
2006	44750000.9872019
2007	60340000.5996227
2008	59580000.6911159
2009	56849999.4017184
2010	49960000.824183196
2011	52659999.6089935
2012	41530001.1839718
2013	60409999.2439151
2014	61540000.5877018
2015	39129999.7866154
2016	38280000.301078
2017	37079999.580979295
2018	39179999.9475479
2019	26690000.5228817
2020	35329999.893903695
2021	26779999.6528775
2022	26170000.41343271