Year	current US$
1960	6065600000
1961	6488200000
1962	7315200000
1963	8523900000
1964	9899200000
1965	10156500000
1966	11732800000
1967	12273800000
1968	13863700000
1969	17372700000
1970	19009800000
1971	21150100000
1972	26851700000
1973	37533500000
1974	52704000000
1975	53745900000
1976	64130600000
1977	70225700000
1978	81464700000
1979	106702000000
1980	134587000000
1981	120660000000
1982	115458000000
1983	105699000000
1984	104120000000
1985	108028000000
1986	129045000000
1987	158094000000
1988	179900000000
1989	192611000000
1990	233954000000
1991	231422000000
1992	240946000000
1993	202240000000
1994	233833000000
1995	277817000000
1996	275521000000
1997	274065000000
1998	290107000000
1999	313490000000
2000	337872000000
2001	328607000000
2002	328727000000
2003	398678000000
2004	470889000000
2005	503801000000
2006	541814000000
2007	631532000000
2008	717917000000
2009	563477000000
2010	610915000000
2011	719887000000
2012	675016000000
2013	682441000000
2014	676617000000
2015	570758000000
2016	567657000000
2017	619334000000
2018	676442000000
2019	654658000000
2020	582564000000