Year	current US$
1960	214600000
1961	244700000
1962	277800000
1963	348900000
1964	367100000
1965	425100000
1966	500300000
1967	553400000
1968	640000000
1969	724660000
1970	781620000
1971	961170000
1972	1149160000
1973	1459000000
1974	1824290000
1975	1940740000
1976	2415210000
1977	3082630000
1978	3910930000
1979	4552900000
1980	5543300000
1981	5673300000
1982	5286900000
1983	5108400000
1984	5809200000
1985	6288400000
1986	7160000000
1987	8426000000
1988	9812800000
1989	11093700000
1990	12005000000
1991	11600500000
1992	13061500000
1993	14490600000
1994	16439800000
1995	19017900000
1996	20337800000
1997	22595500000
1998	23412900000
1999	25793200000
2000	31911700000
2001	29047100000
2002	29513300000
2003	31292400000
2004	38520200000
2005	42506500000
2006	46426600000
2007	54028100000
2008	61310400000
2009	47705700000
2010	58415200000
2011	67260600000.00001
2012	63190200000
2013	66583200000
2014	68955600000
2015	66040100000.00001
2016	60144120000
2017	60016700000
2018	60648200000
2019	57902300000
2020	48992500000