Year	constant 2010 US$
1960	11489666918.6735
1961	11088857576.143
1962	10955313148.9432
1963	10688135445.19
1964	9352074878.04416
1965	8016014229.0096
1966	10554388261.3086
1967	11355997611.0459
1968	14027915742.9895
1969	15631135670.7961
1970	19371925283.5884
1971	24117477023.7949
1972	28947489123.2892
1973	34853273063.7972
1974	44782478539.9343
1975	42756180837.3714
1976	42224802333.5981
1977	39027181329.0768
1978	40815301511.2275
1979	44165330274.8792
1980	44464210983.8759
1981	38969713485.2945
1982	36619468664.815
1983	30235671844.6226
1984	29346372523.0116
1985	29346372523.0116
1986	37762841597.9143
1987	36651175191.2771
1988	36238316648.0695
1989	39477858087.8293
1990	43451846954.9029
1991	51567675534.3338
1992	53900245964.0745
1993	68336748294.6794
1994	82238803774.4429
1995	107475316450.659
1996	113478740791.269
1997	130041050250.114
1998	129967367382.901
1999	110349903876.762
2000	122266133924.511
2001	126339311391.542
2002	109526999374.716
2003	108997439404.275
2004	120293983344.702
2005	129269533708.504
2006	152231143929.059
2007	182003900181.901
2008	212991356923.602
2009	196799823215.098
2010	263001364256.48
2011	287705775352.433
2012	290959301102.774
2013	310365353399.272
2014	303314176614.37
2015	260271963278.763
2016	233352208958.618
2017	244990378922.237
2018	265802121532.515