Year	constant 2010 US$
1968	723475208.902025
1969	750304637.318001
1970	752037836.674873
1971	798190059.260975
1972	818695530.143826
1973	866540231.444926
1974	853931067.607092
1975	840875946.54915
1976	938628188.520502
1977	1066501622.84325
1978	1134210048.19517
1979	1117611152.58476
1980	1233794400.47709
1981	1180422430.39979
1982	1198232694.75067
1983	1109821897.63252
1984	1130030353.48591
1985	1126787040.303
1986	1355374213.72854
1987	1391869302.82234
1988	1389932317.80218
1989	1492644438.79267
1990	1554997990.09505
1991	1516085796.57733
1992	1694153163.06118
1993	1639624090.50942
1994	1691635724.19818
1995	1755578439.1457
1996	1771747709.76737
1997	1896758425.88987
1998	1988353352.09808
1999	2138904859.31703
2000	2122231102.00189
2001	2344525163.95676
2002	2407470533.08182
2003	2536144491.75471
2004	2629681889.18226
2005	2795859835.33787
2006	2957985523.05498
2007	3199944201.07438
2008	3370126186.17479
2009	3384491707.72399
2010	3785960179.85895
2011	4153792518.65037
2012	3998556075.51207
2013	4347246926.91043
2014	4573456561.46868
2015	4892226356.17648
2016	5198749586.58512
2017	5474538024.76187
2018	5732118760.14431