Year	current US$
1960	1066900000
1961	1110900000
1962	1225500000
1963	1560200000
1964	2303387272.7
1965	2545310000
1966	2537040000
1967	2465620363.6
1968	2900967636.4
1969	3098465727.3
1970	3556747363.6
1971	3588121818.2
1972	4309773818.2
1973	4981034545.5
1974	6931971272.7
1975	6924107272.7
1976	5847886181.8
1977	7000744363.6
1978	7534825363.6
1979	7876442636.4
1980	10778619909
1981	13875665120.3
1982	12052645073
1983	10582197883.5
1984	10630808620.933
1985	11038937327.77
1986	11156376550.429998
1987	12660005236.4
1988	13506794008.4
1989	15384749933.08
1990	17130920523.25
1991	15812373876.339998
1992	17052863517.98
1993	15411646141.77
1994	16951026905.78
1995	20108021153.47
1996	21742758015.27
1997	21339916513.149998
1998	49923090176.25
1999	46606921110.46001
2000	56662654806
2001	57026436615
2002	61462362837
2003	77032536664
2004	101212902510
2005	122089148748
2006	149151839531
2007	184978257700
2008	215473734728
2009	188681761911
2010	208225183176
2011	257609821045
2012	276198996081
2013	282373921407
2014	284201977278
2015	259431471315
2016	218026550155
2017	235173914714
2018	249418359611
2019	247883487092
2020	214677328932