Year	current US$
1960	698300000
1961	710500000
1962	696400000
1963	798300000
1964	882300000
1965	1133900000
1966	1214100000
1967	1185600000
1968	1392390000
1969	1594130000
1970	1958210000
1971	2098100000
1972	2317950000
1973	3466610000
1974	4406620000
1975	5317280000
1976	6040790000
1977	6852820000
1978	7818100000
1979	9617210000
1980	10579920000
1981	8809900000
1982	10026460000
1983	9501030000
1984	9434740000
1985	10134570000
1986	11317020000
1987	13172360000
1988	12292883874
1989	15994814033
1990	19763871267
1991	21564033631
1992	22818015086
1993	20200348000
1994	20639989054
1995	25948800255
1996	28744800000
1997	27046351232
1998	28742908970
1999	28016818880
2000	33397263680.999996
2001	32971131409
2002	36447201450
2003	48096273905
2004	56125542414
2005	57728832046
2006	67296595629
2007	84852635740
2008	96616846400
2009	74131174530
2010	65906749490.99999
2011	66704762258
2012	61685902710
2013	60859550748
2014	61982641411
2015	46786309985
2016	46809185672
2017	53495208080
2018	63877464898
2019	62510354173
2020	55694182704