Year	constant 2010 US$
1970	15252602611.8182
1971	16014853737.3665
1972	16758465062.6256
1973	20016988516.9878
1974	21589824366.2158
1975	20116236103.249
1976	23285946358.8031
1977	25500479009.0812
1978	28167310202.1855
1979	29914393596.802
1980	32917044847.0157
1981	34061513358.5289
1982	35471565968.3636
1983	36420797056.683
1984	40309166342.4685
1985	37429848024.7472
1986	34603376086.4442
1987	38898692884.1397
1988	44727081320.6083
1989	47552276057.9828
1990	51000261303.6764
1991	57448989052.4699
1992	63302437510.3903
1993	70843745321.07
1994	76933294688.1703
1995	87325280052.8258
1996	95215021822.9003
1997	99973097030.71
1998	90333382672.4665
1999	95052949015.7406
2000	101428251948.909
2001	101420769982.464
2002	110192590702.623
2003	121893893101.962
2004	134143004528.435
2005	145937986908.832
2006	159647461496.681
2007	174665943912.781
2008	189911352051.06
2009	185013952020.169
2010	191950043936.463
2011	208080279716.449
2012	214525620235.455
2013	225708821124.623
2014	238945778092.73
2015	252675680873.602
2016	263454854088.568
2017	278780441308.668