Year	constant 2010 US$
1970	84998792083.7052
1971	92230839262.2378
1972	97755468854.3841
1973	109919551941.717
1974	122044564159.788
1975	121810138555.916
1976	129938194558.029
1977	130399231572.506
1978	130952736427.392
1979	148989180464.584
1980	144006334388.884
1981	156446518712.798
1982	121793519501.112
1983	132425063045.838
1984	147819022132.55
1985	160672403076.082
1986	164888940210.008
1987	178535901285.194
1988	198595064612.08
1989	208767658972.065
1990	192127713736.293
1991	177832054535.958
1992	171736723524.516
1993	177993761691.216
1994	193933599185.988
1995	199973781573.343
1996	201143120577.577
1997	233248998575.824
1998	236986022659.253
1999	249777711811.362
2000	270578110804.915
2001	261963700365.183
2002	267966493738.031
2003	293343298341.397
2004	318868723959.505
2005	354413449259.639
2006	374609082309.886
2007	385690227712.918
2008	392336110892.714
2009	338080093282.707
2010	379784645544.806
2011	410069682545.8
2012	424719601806.746
2013	440169644269.604
2014	443776741699.931
2015	413989912305.226
2016	396311489373.303
2017	422293059919.975
2018	422275767540.81