Year	constant 2010 US$
1980	240097503.687575
1981	249376351.633394
1982	265295484.836783
1983	278084615.738146
1984	289516437.230033
1985	296118694.422251
1986	301647390.077231
1987	306588113.337159
1988	314828502.575297
1989	304815420.444609
1990	320333796.343907
1991	303048578.023652
1992	328901811.991229
1993	338789108.982677
1994	320912993.031572
1995	332496926.784865
1996	328202680.635917
1997	341430596.906723
1998	345809674.893763
1999	352464586.330314
2000	390700343.42357
2001	399815378.164798
2002	409108852.289599
2003	417717821.238069
2004	425735892.55569
2005	437814191.158555
2006	449403975.383441
2007	453680670.117611
2008	478179519.911508
2009	478179519.911508
2010	482482541.767845
2011	513361330.833441
2012	541595706.739195
2013	562718834.424177
2014	590292107.039971
2015	610362149.83829
2016	623663197.004003
2017	638605301.451432