Year	constant 2010 US$
1970	23609003216.1221
1971	24218449307.6311
1972	24037178157.1153
1973	33800816774.6508
1974	34794682687.1001
1975	38326344519.5542
1976	35280442180.0092
1977	31274692342.1526
1978	33701533468.3971
1979	31428953550.104
1980	33836904017.8124
1981	36029142826.5768
1982	33688806370.73
1983	32141882628.2604
1984	34018467521.179
1985	35258141683.2153
1986	31828802974.0771
1987	37610421225.0684
1988	36653330043.6617
1989	33292411797.3509
1990	35823983578.3871
1991	37463711605.4534
1992	38066151552.2302
1993	39663137865.3241
1994	39531845840.1032
1995	39087732065.6062
1996	39612183900.668
1997	40618052113.2129
1998	41721880167.693
1999	42668099037.8379
2000	43563207483.3343
2001	45104072987.9178
2002	47461247908.852
2003	46124397461.8712
2004	45367385393.0556
2005	46303282824.8384
2006	47956212785.5896
2007	49149559946.242
2008	50150412104.9218
2009	51623379856.7789
2010	53057255370.7901
2011	54212773420.523
2012	56185223864.8293
2013	58225725125.2014
2014	60454495229.3075
2015	62234444841.1663
2016	64851029867.8113
2017	67059401975.1402