Year	constant 2010 US$
1970	167494812946.849
1971	179401375829.374
1972	188529694324.632
1973	201514266400.987
1974	213305359072.407
1975	219061546817.979
1976	229593613391.026
1977	238707275805.251
1978	250001571830.31
1979	259179683122.541
1980	265206050411.017
1981	269173445189.441
1982	269095157665.176
1983	275527074185.115
1984	282752661066.561
1985	289255902478.956
1986	296919666715.444
1987	304271589253.792
1988	311255843616.532
1989	324393823247.887
1990	339270199376.75
1991	348723981540.565
1992	355499685008.971
1993	362172155550.921
1994	371620260834.189
1995	384242757514.53
1996	399111171600.889
1997	422086562873.002
1998	444289631916.533
1999	466240900587.783
2000	488383790697.755
2001	500948586575.137
2002	502974227692.225
2003	506181080202.951
2004	515278296444.048
2005	526206122632.747
2006	546410470016.035
2007	566732107634.514
2008	581521257698.457
2009	569345519716.537
2010	578811895700.064
2011	590445640123.956
2012	588646705111.65
2013	590767323752.673
2014	601474076216.477
2015	613850892160.179
2016	625017533534.021
2017	640683924083.122
2018	655871994899.01