Year	current US$
1960	7000000
1961	7000000
1962	7000000
1963	7000000
1964	12250000
1965	9493333.333333334
1966	10080000
1967	10971428.57142857
1968	13405714.285714285
1969	13280000
1970	18214857.14285714
1971	16424000
1972	17196571.42857143
1973	20795741.384050183
1974	25337142.85714286
1975	27994920.634920634
1976	36786086.95652174
1977	70872222.22222222
1978	67846666.66666667
1979	87641111.1111111
1980	69115555.55555555
1981	50202222.222222224
1982	75621111.1111111
1983	71202797.2027972
1984	89817057.8899006
1985	104374844.64330103
1986	123307348.69054918
1987	93517319.52088054
1988	120310552.37009864
1989	136058537.6921477
1990	97690578.37727366
1991	122795612.43547294
1992	111856266.59241585
1993	97199333.60790774
1994	119554521.23975414
1995	127211119.56373769
1996	58328984.3104872
1997	108143466.15581098
1998	64993089.814425394
1999	4296469.941088793
2000	71592181.99730806
2001	48969459.62545914
2002	44211767.10008272
2003	59558741.94084721
2004	71339172.32107984
2005	91650418.50407332
2006	106260083.26974776
2007	108370723.34188953
2008	133113958.21510917
2009	151773826.94207177
2010	187610248.01648057
2011	234573194.32509163
2012	232857324.21320713
2013	245749632.04094717
2014	281828252.1601384
2015	253821759.09464493
2016	226770545.14505678
2017	303040354.770546
2018	287146148.4104049
2019	319284538.4715014
2020	401489886.9733744
2021	442321579.3888962
2022	548281627.5434784
2023	433893147.5211596