Year	constant 2010 US$
1960	17426440326.9292
1961	16520438507.8359
1962	17986299708.66
1963	17065875304.5653
1964	17244191045.4297
1965	17844695954.1839
1966	17762093719.9254
1967	19150597274.8953
1968	19971374631.7491
1969	19553119004.4944
1970	20084481274.9694
1971	20049190528.4651
1972	21622341500.2976
1973	23214495049.3437
1974	22234499357.6303
1975	20878522077.997
1976	20274508106.6459
1977	20737359224.4224
1978	23769644910.1505
1979	25779857541.862
1980	25336009133.7417
1981	25041467465.1775
1982	29209842330.4165
1983	27272925732.0791
1984	28552892305.5302
1985	30199339310.7368
1986	30242773943.2227
1987	31172548254.2089
1988	30690694426.7763
1989	31882434332.6304
1990	34044668509.1487
1991	30860361278.6139
1992	35370784387.8937
1993	33260128994.7278
1994	33443369210.6056
1995	34880786542.037
1996	37186898244.9379
1997	37157036844.0496
1998	38314843406.0247
1999	40259903890.3438
2000	39892066188.4056
2001	38746475720.2878
2002	40953501931.9171
2003	34708405149.8338
2004	42103164475.4682
2005	39654532648.8099
2006	39737330103.2333
2007	39426500397.821
2008	41191035471.5128
2009	43878558240.3921
2010	42388204722.983
2011	44079443763.3007
2012	40369848072.8474
2013	39592095306.6679
2014	45413703660.4698
2015	45477498405.237
2016	39855418171.7185
2017	43497147174.4137
2018	44963068636.5506