Year	current US$
1960	11200000
1961	21900000
1962	141100000
1963	337000000
1964	624000000
1965	796500000
1966	995000000
1967	1177800000
1968	1865800000
1969	2167200000
1970	2365600000
1971	2696000000
1972	2308200000
1973	3996300000
1974	8260799999.999999
1975	6098900000
1976	8305000000
1977	9759400000
1978	9906700000
1979	16084800000
1980	21919000000
1981	15575400000
1982	13947913804
1983	11391615761
1984	11135743681
1985	10928875960
1986	6729268000
1987	8047016000
1988	6817510000
1989	8616958000
1990	13877949000
1991	11211712000
1992	9941715123
1993	7541656339
1994	7864957442
1995	8510412361.999999
1996	10154816714
1997	9576273059
1998	6032392213
1999	7961392699
2000	10245607942
2001	8934718471
2002	8084217475
2003	10707708378
2004	14759598241
2005	21589909890
2006	28652681681
2007	32495891919
2008	44654375192
2009	27253877771
2010	76488982567
2011	29324409097
2012	95175922314
2013	67476967093
2014	38368604515
2015	25972241521
2016	20145460146
2017	20135703912
2018	29988937071
2019	32404417292
2020	11141842915