Year	constant 2010 US$
1981	100631225885.202
1982	95549376954.3313
1983	84033204988.7623
1984	77972605744.1689
1985	84194012359.1811
1986	69510040763.563
1987	55951739681.9552
1988	61823541529.696
1989	59876367356.3439
1990	72354053653.1504
1991	74512649578.8367
1992	82448622167.2943
1993	81110296325.3004
1994	77705245564.1459
1995	82161032883.3384
1996	97710727610.4805
1997	94631605316.1053
1998	95356769100.0545
1999	90091567906.4259
2000	91734575223.2232
2001	126368763985.549
2002	127432036835.487
2003	144703664925.681
2004	180875261755.313
2005	197902695128.345
2006	178693481445.528
2007	254501323392.859
2008	235515102841.688
2009	283359342578.744
2010	276178343890.138
2011	270190824619.09
2012	269537861834.489
2013	315993836859.439
2014	315677099871.588
2015	314642130332.406
2016	296178597567.499
2017	291910622421.456