Year	constant 2010 US$
1987	533883964.958875
1988	588340048.637353
1989	615517424.392004
1990	623951400.265505
1991	575659883.398527
1992	560488191.105588
1993	512105948.709798
1994	468036468.233147
1995	458627219.109844
1996	528300068.065828
1997	593053677.321949
1998	609969355.45927
1999	660061857.515792
2000	677752909.692662
2001	727067084.050074
2002	749665686.976202
2003	773620745.836489
2004	805402415.993418
2005	771877360.499725
2006	784973230.628284
2007	797631142.172019
2008	804511164.931578
2009	858611845.857385
2010	836531830.137737
2011	851978603.798147
2012	862605179.619745
2013	885472188.503081
2014	880604501.683938
2015	934812848.039496
2016	961606241.068456
2017	983098799.737039
2018	1009782502.3687