Year	current US$
1960	31319999.6948242
1961	22299999.237060502
1962	23079999.9237061
1963	28750000
1964	16530000.6866455
1965	23280000.6866455
1966	11840000.1525879
1967	11689999.5803833
1968	20870000.8392334
1969	29290000.915527303
1970	34729999.5422363
1971	12810000.4196167
1972	37270000.4577637
1973	28969999.3133545
1974	9689999.5803833
1975	12050000.1907349
1976	19290000.915527303
1977	31469999.3133545
1978	156919998.168945
1979	342079986.57226604
1980	326700012.207031
1981	293850006.10351604
1982	79629997.253418
1983	42900001.5258789
1984	17680000.3051758
1985	38060001.373291
1986	89059997.55859381
1987	248830001.831055
1988	185850006.10351598
1989	133250000
1990	241539993.28613302
1991	174000000
1992	60349998.4741211
1993	50470001.220703095
1994	25750000
1995	13430000.3051758
1996	82819999.6948242
1997	24270000.4577637
1998	-12140000.3433228
1999	5579999.92370605
2000	-20959999.084472697
2001	66250000
2002	-71040000.9155273
2003	-11359999.6566772
2004	-46180000.3051758
2005	-33560001.373291
2006	-52779998.779296905
2007	-55549999.237060495
2008	-50069999.6948242
2009	6699999.80926514
2010	-10250000
2011	58650001.5258789
2012	28950000.762939498
2013	228750000
2014	343869995.11718804
2015	319529998.779297
2016	241190002.44140598
2017	516270019.53125
2018	242839996.33789098
2019	279720001.220703
2020	365850006.10351604
2021	144199996.94824198
2022	101379997.253418