Year	current US$
1960	701300000
1961	1076800000
1962	1552800000
1963	1936500000
1964	2241400000
1965	3005300000
1966	3593000000
1967	3482300000
1968	3511390000
1969	4229170000
1970	4748050000
1971	4964820000
1972	6796550000
1973	9590620000
1974	15379370000
1975	16234140000
1976	17461410000
1977	17833940000
1978	18712990000
1979	25437510000
1980	34076480000.000004
1981	32152550000
1982	31469880000
1983	29194290000
1984	28831780000
1985	29962870000
1986	35055000000
1987	49106900000
1988	60536530000
1989	70949185235
1990	87808386852
1991	96647030849
1992	99824890730
1993	81856953426
1994	92176422072
1995	115493000000
1996	121847000000
1997	122753000000
1998	130074000000
1999	135067000000
2000	155776000000
2001	154558000000
2002	165064000000
2003	208813000000
2004	258340000000
2005	288510000000
2006	328819000000
2007	389667000000
2008	422726000000
2009	293555000000
2010	326907000000
2011	376341000000
2012	337676000000
2013	340620000000
2014	358860000000
2015	311851000000
2016	310921000000
2017	351981000000
2018	390562000000
2019	372750000000
2020	324994000000