Year	constant 2010 US$
1978	94229262.718809
1979	94229262.718809
1980	109509542.715816
1981	131211644.734957
1982	139824042.659656
1983	183898945.894826
1984	195044336.433837
1985	213788857.266192
1986	200617082.459504
1987	202050683.877997
1988	215161716.111791
1989	217841729.133086
1990	231404435.901345
1991	239734995.593793
1992	227748245.814103
1993	223648777.243912
1994	184510241.462726
1995	194656247.181163
1996	196408153.405793
1997	159581624.824129
1998	162831024.105228
1999	152814250.123529
2000	173043946.092263
2001	213939950.172941
2002	250324295.440448
2003	275429493.675028
2004	298715474.646233
2005	323092985.975462
2006	348925871.115392
2007	380329199.515778
2008	406951624.948013
2009	429335274.156583
2010	454236720.057665
2011	490573765.676324
2012	533256241.109636
2013	580715981.076573
2014	632709210.46384
2015	697913595.61774
2016	694293353.263623