Year	current US$
1960	1408800000
1961	1477000000
1962	1544500000
1963	1665400000
1964	1851300000
1965	2094199999.9999998
1966	2326400000
1967	2309400000
1968	2497200000
1969	2825300000
1970	3543800000
1971	4187100000.0000005
1972	5205000000
1973	7109800000
1974	9020500000
1975	9389400000
1976	11517800000
1977	14206000000
1978	16007600000
1979	20244000000
1980	24433300000
1981	21029300000
1982	19490100000
1983	19402100000
1984	19651100000
1985	20967300000
1986	26822900000
1987	32720100000
1988	36561594606
1989	38901609327
1990	49287236623
1991	50826632762
1992	54164480197
1993	48029219935
1994	55334119681
1995	66263918970
1996	67326395762
1997	64180443484
1998	66976317169.99999
1999	71258348634
2000	72136838252
2001	74648864011
2002	78267265695
2003	99542232201
2004	119924000000
2005	127151000000
2006	137320000000
2007	163246000000
2008	184502000000
2009	143116000000
2010	158925000000
2011	191429000000
2012	178596000000
2013	183273000000
2014	182076000000
2015	156046000000
2016	157697000000
2017	175755000000
2018	193721000000
2019	184758000000
2020	172449000000