Year	constant 2010 US$
1961	7800806221.42889
1962	7756505346.59116
1963	7184446223.68638
1964	8212996969.91922
1965	8723420093.04975
1966	9187616216.34961
1967	9349410715.75697
1968	8927589342.30197
1969	9062418091.80816
1970	9245399966.13792
1971	9467628059.78009
1972	9340068360.56811
1973	9709255566.94115
1974	10001171032.4455
1975	10025701743.8324
1976	10641777964.1758
1977	10857788442.5713
1978	10490280682.3481
1979	11075973523.0983
1980	11539888644.4846
1981	11943404228.5125
1982	11960311723.241
1983	12442044226.9912
1984	12601675685.1218
1985	13108198581.1134
1986	13384483797.1087
1987	13937054229.0994
1988	14412878767.7581
1989	14934599626.5099
1990	15370791998.9173
1991	15797006109.1212
1992	16183307199.8253
1993	16499760496.0651
1994	16910732391.8786
1995	17559154707.6627
1996	18068303226.0295
1997	18623115282.9247
1998	19262404887.7325
1999	20192824762.8112
2000	20940196132.5073
2001	21735859204.2924
2002	22518458480.6451
2003	23302123527.4844
2004	23945127769.1678
2005	24724819115.7763
2006	25528043952.8732
2007	26467570112.5689
2008	27353590548.1231
2009	28220836674.4284
2010	29201364197.0829
2011	29996214036.9116
2012	30871907276.9727
2013	31798792201.3357
2014	32754801720.7992
2015	33760834899.1129
2016	34806360439.6765
2017	35934501058.5374
2018	37053842525.1302