Year	current US$
1960	27129999.1607666
1961	129800003.051758
1962	56409999.8474121
1963	27350000.3814697
1964	4269999.98092651
1965	21420000.0762939
1966	11340000.1525879
1967	32130001.068115197
1968	8380000.11444092
1969	17040000.915527303
1970	20950000.762939498
1971	7550000.19073486
1972	8880000.11444092
1973	-3740000.00953674
1974	9079999.92370605
1975	1519999.98092651
1976	-5460000.03814697
1977	38689998.626709
1978	243050003.05175802
1979	5840000.15258789
1980	28159999.8474121
1981	4840000.15258789
1982	-629999.995231628
1983	42720001.220703095
1984	7800000.19073486
1985	11430000.3051758
1986	26309999.4659424
1987	70879997.253418
1988	81330001.8310547
1989	91290000.9155273
1990	106449996.94824201
1991	193399993.89648402
1992	105699996.94824201
1993	140479995.727539
1994	130039993.286133
1995	186940002.44140598
1996	164500000
1997	200759994.506836
1998	164559997.55859402
1999	161490005.493164
2000	129869995.117188
2001	114559997.558594
2002	114540000.915527
2003	131050003.051758
2004	188649993.89648402
2005	100669998.168945
2006	117239997.86377
2007	103769996.64306599
2008	100470001.22070299
2009	92519996.6430664
2010	112440002.441406
2011	105790000.915527
2012	151789993.28613302
2013	131600006.103516
2014	81169998.1689453
2015	110900001.52587901
2016	116190002.441406
2017	140279998.779297
2018	166449996.94824198
2019	204440002.44140598
2020	235399993.89648402
2021	303769989.013672
2022	289589996.33789104