Year	current US$
1960	2233300000
1961	2691200000
1962	3003500000
1963	3236000000
1964	3609200000
1965	3697800000
1966	3947600000
1967	4117399999.9999995
1968	4505800000
1969	5286100000
1970	6487000000
1971	7215400000
1972	8481700000.000001
1973	11670100000
1974	14443200000
1975	13296400000
1976	14770500000
1977	17929300000
1978	23802800000
1979	26477300000
1980	36353600000
1981	30687300000
1982	28674100000
1983	29188900000
1984	29514300000
1985	30697300000
1986	41047100000
1987	50649200000
1988	56547500000
1989	58205983246
1990	69703757061
1991	66256582805
1992	65732372512
1993	60701739577
1994	68043262542
1995	80049980303
1996	78177344314
1997	75650325437
1998	80268492593
1999	79840800000
2000	82534200212
2001	84066186377
2002	87177549949
2003	100224000000
2004	115799000000
2005	126510000000
2006	141283000000
2007	160964000000
2008	183192000000
2009	155706000000
2010	176305000000
2011	208279000000
2012	295958000000
2013	321098000000
2014	275231000000
2015	251500000000
2016	270349000000
2017	263987000000
2018	275501000000
2019	276403000000
2020	290222000000