Year	current US$
1967	1084050000
1968	1151100000
1969	1168930000
1970	1398820000
1971	1443720000
1972	1600290000
1973	2508870000
1974	4160800000
1975	3535970000
1976	3838520000
1977	4553950000
1978	5935670000
1979	7848110000
1980	10832150000
1981	11590550000
1982	12418910000
1983	13246180000
1984	14067470000
1985	12310350000
1986	10835910000
1987	12710230000
1988	16569090000
1989	22590045562
1990	29172763875
1991	36753518339
1992	39934427231
1993	45627880587
1994	59561622424
1995	77632742075
1996	78457072762
1997	79059377909
1998	58337690674
1999	65501648817
2000	82205151396
2001	73360503785
2002	79514698222
2003	82743369931
2004	104307000000
2005	113609000000
2006	130476000000
2007	146982000000
2008	156896000000
2009	123826000000
2010	164735000000
2011	187640000000
2012	196592000000
2013	206118000000
2014	208961000000
2015	175977000000
2016	168371000000
2017	195079000000
2018	217909000000
2019	204835000000
2020	190321000000