Year	constant 2010 US$
1960	18736677847.2384
1961	20073690120.8102
1962	21338937183.0416
1963	23079934863.4081
1964	24953184502.3385
1965	26342498625.8152
1966	27828101004.8469
1967	30172925737.9293
1968	32486274813.439
1969	34214848777.0195
1970	34252711352.5438
1971	34786372513.4427
1972	39509426289.8111
1973	42568677021.9219
1974	42911846546.2567
1975	44521368625.3964
1976	49958003601.2684
1977	51224966016.8206
1978	56341404296.1533
1979	57681147944.2989
1980	60355146129.8773
1981	61405797898.8005
1982	61487320998.2076
1983	65829391517.9925
1984	70998687671.3084
1985	76127323910.1061
1986	77848254101.751
1987	78729354093.4785
1988	83654487538.9493
1989	92755595836.2056
1990	100690984855.922
1991	106778584789.742
1992	111916369518.82
1993	115437719983.455
1994	125169666593.134
1995	131429461216.048
1996	144606520981.663
1997	155827026460.775
1998	156873612243.21
1999	161337459153.454
2000	166459183223.494
2001	173688919696.677
2002	173215841792.362
2003	173019454471.253
2004	174799341524.886
2005	175590786427.685
2006	174175618684.682
2007	176545480849.304
2008	176779071959.189
2009	169530225324.693
2010	170473128360.678
2011	169084796145.043
2012	171743953475.803
2013	168892474826.968
2014	174099787966.359
2015	182319999575.348
2016	184257037110.161
2017	183838240170.964
2018	182572904133.462