Year	constant 2010 US$
1970	50421146758.5628
1971	53066086336.2682
1972	57755379472.5672
1973	62757309080.9843
1974	63649026256.3641
1975	64872126313.9962
1976	70938153797.3683
1977	77471946731.0958
1978	84011778481.8455
1979	85794443653.9559
1980	89837077459.8832
1981	89453335128.1389
1982	90169474389.1364
1983	89482442900.2368
1984	92270197915.9486
1985	93512380528.1545
1986	103053383258.465
1987	101277575003.162
1988	107635683152.057
1989	107712229538.568
1990	109342030599.743
1991	115716808193.184
1992	121377503773.478
1993	130235311449.436
1994	146863621419.35
1995	153471926690.523
1996	153555463577.662
1997	158938932640.249
1998	158159470127.744
1999	147716739687.982
2000	146337868798.239
2001	149029738722.001
2002	151901794015.655
2003	155557598793.744
2004	164849122997.519
2005	170999771014.491
2006	183356536566.051
2007	199240672035.762
2008	207877636547.964
2009	215521001307.584
2010	227219037121.828
2011	241131012111.595
2012	255884304307.675
2013	270061719744.351
2014	283138812634.701
2015	293628105440.124
2016	300022369016.997
2017	303256479641.466