Year	current US$
1960	524000000
1961	376000000
1962	535000000
1963	740000000
1964	861000000
1965	857369995.117188
1966	734270019.53125
1967	828580017.089844
1968	592169982.910156
1969	498000000
1970	418000000
1971	454000000
1972	104000000
1973	84000000
1974	91000000
1975	225000000
1976	135000000
1977	64000000
1978	83000000
1979	94000000
1980	83000000
1981	183000000
1982	39000000
1983	58000000
1984	65000000
1985	29000000
1986	49000000
1987	39000000
1988	91000000
1989	69000000
1990	-24000000
1991	27000000
1992	11000000
1993	20000000
1994	6000000
1995	16000000
1996	6000000
1997	29000000
1998	3029999.97138977
1999	8130000.11444092
2000	14550000.1907349
2001	-17309999.4659424
2002	-3789999.96185303
2003	35979999.5422363
2004	50509998.3215332
2005	57130001.0681152
2006	96839996.3378906
2007	84870002.746582
2008	52060001.373291
2009	48119998.9318848
2010	62799999.237060495
2011	82819999.6948242
2012	57700000.762939505
2013	71940002.44140631
2014	78169998.1689453
2015	60450000.762939505
2016	91069999.6948242
2017	109889999.38964799
2018	117839996.337891
2019	72199996.9482422
2020	68010002.1362305
2021	132339996.337891
2022	194589996.33789098