Year	constant 2010 US$
1976	2637894233.57067
1977	3074177095.97835
1978	3395403586.03144
1979	3821130682.63084
1980	4523683597.94314
1981	5418993138.60811
1982	5294480252.10117
1983	5037116882.66599
1984	5570045393.45836
1985	5805163154.27974
1986	5006947484.62771
1987	6151924813.7165
1988	7467560655.10738
1989	7291331727.03407
1990	7740967854.43258
1991	7349550684.09916
1992	7734858670.1457
1993	8215113647.34043
1994	8544506065.36762
1995	9246156389.77493
1996	9335881218.5651
1997	9077466533.53202
1998	9202239585.8241
1999	9284953458.84221
2000	9503827041.63351
2001	9980701092.75117
2002	11825605096.707
2003	12403284990.5121
2004	14310141228.1223
2005	14790039347.996
2006	16624186828.2937
2007	17027399956.2961
2008	15182640579.9342
2009	13093056225.6093
2010	12769816643.1594
2011	12329445686.4128
2012	12463269958.8536
2013	11701474106.9705
2014	12188225447.8745
2015	11265525939.2591
2016	10520103503.694
2017	11077810351.0991
2018	11663430900.4767