Year	constant 2010 US$
1960	14816230251.9714
1961	16288278976.5209
1962	16384021982.9958
1963	16611411623.3733
1964	16994383649.2725
1965	17221773289.65
1966	17233741165.4594
1967	18215106981.8258
1968	19938481098.3717
1969	21745630345.5832
1970	23780169233.1721
1971	25970290506.2826
1972	28603223184.3388
1973	31116477104.3017
1974	34091047823.083
1975	37526197233.8046
1976	39745473728.6004
1977	44537685356.6461
1978	48489615025.8841
1979	52578621686.7709
1980	58777243249.1344
1981	64523510739.0566
1982	67877784724.7053
1983	71009993983.8829
1984	75094702619.5473
1985	78514778202.5352
1986	84044063956.753
1987	89295131223.8038
1988	95400236016.2764
1989	104284581569.444
1990	111859533766.341
1991	118738203717.583
1992	127298942406.046
1993	137485811723.199
1994	147233792393.592
1995	158432019848.119
1996	169132096422.576
1997	178575842568.109
1998	149179527882.912
1999	147642058033.02
2000	155281655134.404
2001	162869205130.783
2002	171331381577.598
2003	182224773281.115
2004	195181535287.784
2005	210544333206.878
2006	225977296403.704
2007	246312971256.42
2008	267642286346.042
2009	283233934591.512
2010	307066517940.349
2011	332893207631.808
2012	355596261841.556
2013	378319656115.842
2014	401083686516.901
2015	422950289949.325
2016	446908025825.348
2017	472189790997.092
2018	499723528030.287