Year	current US$
1960	460000000
1961	540000000
1962	469000000
1963	529000000
1964	366000000
1965	427500007.03707296
1966	380729993.52589303
1967	349529993.839562
1968	370950009.278953
1969	388000000
1970	315000000
1971	299000000
1972	379000000
1973	324000000
1974	149000000
1975	691000000
1976	864000000
1977	996000000
1978	1021000000
1979	1282000000
1980	925000000
1981	908000000
1982	913000000
1983	1410000000
1984	1394000000
1985	2154000000
1986	2138000000
1987	1366000000
1988	1346000000
1989	1287000000
1990	1733000000
1991	2918000000
1992	2275000000
1993	1436000000
1994	2165000000
1995	289000000
1996	2322000000
1997	1256000000
1998	1160049972.06852
1999	1040620002.48022
2000	928919988.516718
2001	253969997.64815003
2002	863269992.755726
2003	533980012.15606904
2004	596580009.832978
2005	46429999.7705966
2006	58619998.5891581
2007	56419999.0183115
2008	49679999.3459135
2009	54279999.8018891
2010	48499998.5210598
2011	36649999.8308718
2012	34440001.6646832
2013	24300000.555813298
2014	16469999.7529387
2015	14819999.7227639
2016	17180000.200867698
2017	24770000.761374798
2018	14809999.8682737
2019	13870000.3623962
2020	9809999.99120831
2021	41449998.341500804
2022	41350000.38146974