Year	constant 2010 US$
1977	265671122.377339
1978	279861685.357341
1979	295539770.739905
1980	293959271.188744
1981	298469157.578767
1982	310778806.574048
1983	322068079.421398
1984	333560966.885645
1985	353506939.261937
1986	378939196.416168
1987	413412905.765728
1988	425678005.547573
1989	441716406.815312
1990	459440771.92993
1991	465806534.302448
1992	461841827.778543
1993	452795198.094421
1994	460463538.539553
1995	470268995.165715
1996	491140636.967902
1997	515773769.13944
1998	576395254.526778
1999	616157088.234607
2000	646274551.793201
2001	633194600.876292
2002	654959547.879999
2003	716944745.47362
2004	712302884.452897
2005	806847301.238685
2006	774632469.576978
2007	822066708.874271
2008	829856141.34603
2009	774975419.935199
2010	771013259.259259
2011	776911332.002809
2012	767936889.427134
2013	785994301.613538
2014	843718324.581439
2015	898080308.938223
2016	931629123.871904
2017	978762255.054155
2018	1026006951.86419