Year	current US$
1960	8412125000
1961	8768895000
1962	8733251000
1963	8786040000
1964	9507660000
1965	9956787000
1966	11044594000
1967	11574254000
1968	12695871000
1969	13660761000
1970	15725661000
1971	17615887000
1972	19864030000
1973	25949008000
1974	45519540000
1975	49438331000
1976	50353373000
1977	56432254000
1978	64293221000
1979	80293533000
1980	102815028888.91
1981	114749804974.1
1982	91212151560.47
1983	70227417467.62
1984	73455967597.47
1985	74250595247.84
1986	73473506353.87001
1987	82409318518.17
1988	91589971876.67001
1989	98955130001.6
1990	111444659485.8
1991	143364275457.22998
1992	171661975030.3
1993	192024417275.43002
1994	222877588479.67
1995	247225142585.1
1996	283860719735.7999
1997	335311297911.6
1998	356283753702.4
1999	346867349185.9
2000	389214658089
2001	382485954807
2002	354353576906
2003	365048767809
2004	442922363302
2005	526871787160
2006	624704878420
2007	752309715385
2008	914545913089
2009	686120788273
2010	889917115581
2011	1086902413362
2012	1141365065895
2013	1173417353883
2014	1162062218139
2015	1039860758750
2016	943754652024
2017	1023971462317
2018	1130994430718
2019	1081489064510
2020	925836077738