Year	constant 2010 US$
1980	164823625.345287
1981	174332993.380166
1982	178171240.962056
1983	187087619.73134
1984	188979789.625448
1985	213367969.501364
1986	208395308.724523
1987	217641261.247788
1988	223420207.349764
1989	220673975.135883
1990	216793281.866299
1991	214577136.655075
1992	289132649.495085
1993	321033270.674926
1994	374545778.598325
1995	440039841.242576
1996	733018355.315771
1997	1832347705.69357
1998	2267978887.20713
1999	2850033339.01954
2000	3369132140.08877
2001	5504483893.3827
2002	6575812458.086
2003	7493483546.94777
2004	10340911891.9249
2005	12072880264.5669
2006	13003085741.6938
2007	14990232117.7878
2008	17658359891.78
2009	17895574579.7547
2010	16298542027.9965
2011	17361846462.6899
2012	18805114508.9646
2013	18027861797.9093
2014	18102689377.1309
2015	16453526925.8321
2016	15002915342.6387
2017	14299926158.7733
2018	13878116919.8895