Year	current US$
1960	85857410000
1961	90216850000
1962	97765920000
1963	107777400000
1964	121041200000
1965	132338210000
1966	148506580000
1967	156564413000
1968	179081337000
1969	207077150000
1970	242670117000
1971	270741401000
1972	321581344000
1973	444821984000
1974	636786003000
1975	645290490000
1976	745537167000
1977	853648401000
1978	989828801000
1979	1260875818000
1980	1511097981000
1981	1464273854300
1982	1380711980593
1983	1360689198821
1984	1472700179917.52
1985	1512590378724.44
1986	1673744233910.3599
1987	1974519208082.2
1988	2251843953917.5605
1989	2438617889931.4
1990	2786309341942.9004
1991	2857790702294.53
1992	3016836820509.4
1993	2917549296318
1994	3320330970937.5
1995	3933620854060.4
1996	4108449056887.6
1997	4406784042264.8
1998	4401534090115.701
1999	4681921017080.801
2000	5240855859196
2001	5052757188819
2002	5219044188090
2003	6052537669715
2004	7255244340947
2005	8121408292705
2006	9236194772757
2007	10465645572450
2008	11828066074383
2009	9005848391013
2010	10586710312558
2011	12358121652603
2012	12330017304605
2013	12400265572217
2014	12553661471834
2015	11165551308896
2016	10960938483248
2017	11919019408486
2018	13036651565224
2019	12649727904919
2020	11677636484462