Year	constant 2010 US$
1976	1681093249.7578
1977	2235401791.93534
1978	2159479265.30014
1979	2410689753.43359
1980	3292393904.50562
1981	4238350036.10364
1982	3613663532.84392
1983	3106212541.78217
1984	3163444688.36758
1985	2232894686.67596
1986	2346669366.33804
1987	2967789269.9834
1988	3008798935.01655
1989	3027757987.75992
1990	3432064498.40216
1991	2501899877.90449
1992	3866167540.18987
1993	4455211145.86342
1994	4410000886.60189
1995	4548138769.64585
1996	4192832201.31509
1997	3694498453.98844
1998	3249165866.18017
1999	3338624755.28866
2000	3546957026.66941
2001	3493550426.68356
2002	3500577250.97704
2003	3638737928.64996
2004	4987232923.39495
2005	6614587075.51218
2006	5982985289.6768
2007	6875891329.28622
2008	8016544896.9945
2009	8026942228.59493
2010	7839915373.76587
2011	6976083414.33831
2012	6706136533.77091
2013	6084021727.17344
2014	6089964259.38905
2015	6299420440.09238
2016	5882211352.25071
2017	6287678160.48962
2018	5736431205.68266