Year	constant 2010 US$
1971	4871222458.80066
1972	5160430009.2449
1973	5343353112.1946
1974	5256887233.74298
1975	5456751039.56296
1976	5355763759.1849
1977	5243232186.41658
1978	5897483984.04186
1979	5917412655.56316
1980	6606804302.58632
1981	7220990231.51435
1982	7892594115.76988
1983	8002001786.81244
1984	7860682046.03142
1985	8608374372.0017
1986	8882222814.51004
1987	9953871863.14244
1988	8208001902.03495
1989	8237063000.00579
1990	8741437921.71114
1991	9301010505.31749
1992	10643589789.3499
1993	11446639290.9487
1994	11911620354.8265
1995	11511634691.1034
1996	11877423276.5809
1997	12706794477.9975
1998	13651081660.4431
1999	13765622723.3326
2000	14164244854.3125
2001	14274694881.2649
2002	15299570448.7918
2003	16083708834.3736
2004	16542076127.2138
2005	18178673163.9483
2006	19516906766.7374
2007	21113153731.9436
2008	23524546892.2738
2009	24477752035.9185
2010	25207596018.5712
2011	29042250250.3519
2012	31812842249.4916
2013	34585939542.3249
2014	34556071551.9322
2015	37271094558.7099
2016	38826764222.7898
2017	40391625396.8856