Year	current US$
1960	4306770834.160468
1961	3942008925.2759624
1962	4325536720.148095
1963	4669187007.29652
1964	5377599203.329451
1965	5098456649.2634945
1966	5818597524.038692
1967	5207533361.566578
1968	4262201854.9398518
1969	4174236764.372849
1970	4076888730.812032
1971	4241090233.2037716
1972	4694990100.529507
1973	6048581996.7769165
1974	9542271813.368122
1975	11281602332.898472
1976	9962075665.720205
1977	11624258460.593967
1978	14864462896.170668
1979	18434298518.916428
1980	26111999999.999996
1981	26951000000
1982	26014000000
1983	25032000000
1984	27750000000.000004
1985	27987000000.000004
1986	27200000000.000004
1987	29005000000.000004
1988	32790000000
1989	35137000000
1990	39086000000
1991	36777000000
1992	41623000000
1993	41909000000
1994	46969999999.99999
1995	60146999999.99999
1996	65009999999.99999
1997	68912999999.99998
1998	67911999999.99998
1999	74404999999.99998
2000	80863999999.99998
2001	79326999999.99998
2002	86906999999.99998
2003	107276999999.99997
2004	142900999999.99997
2005	196834999999.99997
2006	241109999999.99997
2007	299623000000
2008	409715000000
2009	329964000000
2010	441605000000
2011	579754000000
2012	604842000000
2013	582899000000
2014	589280000000
2015	516613000000
2016	491047000000
2017	602286000000
2018	681397000000
2019	638408000000
2020	507029000000.00006
2021	771660000000
2022	922038000000
2023	830277000000