Year	current US$
1960	273187200
1961	271066000
1962	281896800
1963	294883400
1964	325281200
1965	353251800
1966	368948600
1967	369124200
1968	367968800
1969	391820400
1970	331200000
1971	362800000
1972	371998958.40291643
1973	466798973.04225934
1974	565399321.5208142
1975	681400000
1976	879000000
1977	947000000
1978	974200000
1979	1080600000
1980	1383800000
1981	1479400000
1982	1474200000
1983	1623600000
1984	1816200000
1985	2009400000
1986	2318000000
1987	2047200000
1988	2613926800
1989	2736243800
1990	3096289800
1991	3473562627.794227
1992	2257129791.615749
1993	1878253767.3130486
1994	2167569046.1183734
1995	2813313278.8108196
1996	2907517603.767188
1997	3338949151.599272
1998	3723903723.637718
1999	4153725883.8408227
2000	6813566098.867498
2001	6331970324.310222
2002	6205847213.635101
2003	5071947798.272632
2004	6087360684.2969
2005	7030149730.336923
2006	7638739122.672419
2007	9228637767.69009
2008	10432962634.874826
2009	11597002834.778614
2010	11859312725.144835
2011	13008746038.8867
2012	13708925477.130407
2013	14902488604.242088
2014	15146883497.633091
2015	14849629308.602478
2016	14069277526.227812
2017	15093357161.149847
2018	16403864617.84576
2019	15016090929.512514
2020	14508222518.301786
2021	20877414952.63745
2022	20253551920.551617
2023	19850829757.747147