Year	current US$
1960	4507900000
1961	5063900000
1962	5330700000
1963	5944900000
1964	7034700000
1965	7446000000
1966	8009800000
1967	8328799999.999999
1968	9290300000
1969	10987300000
1970	13391400000
1971	15405300000
1972	17523400000
1973	24752800000
1974	33699400000
1975	35583000000
1976	40533200000
1977	46573900000
1978	53840000000
1979	68174399999.99999
1980	78037900000
1981	67098700000
1982	63752800000
1983	61725600000
1984	62308100000
1985	65072300000
1986	75581000000
1987	91317100000
1988	99371590805
1989	104045000000
1990	123379000000
1991	125469000000
1992	129811000000
1993	113274000000
1994	130800000000
1995	157680000000
1996	160989000000
1997	158254000000
1998	158798000000
1999	207942000000
2000	217572000000
2001	208694000000
2002	219125000000
2003	264724000000
2004	319787000000
2005	363228000000
2006	417103000000
2007	493303000000
2008	581613000000
2009	443549000000
2010	512716000000
2011	594313000000
2012	587296000000
2013	589762000000
2014	589570000000
2015	512105000000
2016	500797000000
2017	574646000000
2018	645502000000
2019	635678000000
2020	596312000000