Year	current US$
1960	496100000
1961	572300000
1962	634900000
1963	673900000
1964	833200000
1965	833300000
1966	838600000
1967	754600000
1968	1079200000
1969	1666040000
1970	2079420000
1971	2388230000
1972	2472010000
1973	4239870000
1974	5439910000
1975	5998840000
1976	5668660000
1977	5787350000
1978	7402700000
1979	8599500000
1980	9685400000
1981	10191200000
1982	9025300000
1983	9591700000
1984	9800100000
1985	10010100000
1986	10809700000
1987	14347700000
1988	15012000000
1989	14149500000
1990	15337700000
1991	16819099999.999998
1992	18957000000
1993	20509500000
1994	23729100000
1995	28218100000
1996	29938400000
1997	28965000000
1998	27446800000
1999	31095400000
2000	36802000000
2001	33299000000
2002	33106300000.000004
2003	34213400000
2004	41101100000
2005	44936700000
2006	47738500000
2007	56585900000
2008	65144600000
2009	47366100000
2010	59198900000
2011	73535600000
2012	73120600000
2013	71898300000
2014	72275700000
2015	62004700000
2016	65742221000.00001
2017	69091000000
2018	76582300000
2019	76440100000
2020	70177800000