Year	constant 2010 US$
1970	472881216.558365
1971	474507429.444879
1972	510303679.759084
1973	489031813.48015
1974	571365836.590304
1975	546744184.821049
1976	588491943.593458
1977	684910450.901104
1978	717363026.735232
1979	861802572.379614
1980	820446427.15123
1981	864177972.194313
1982	996457398.935068
1983	1028962534.90311
1984	1005533794.11498
1985	1096809400.6406
1986	1154929280.97089
1987	1179863668.78616
1988	1209027679.52208
1989	1274924424.34685
1990	1273383462.42146
1991	1339742151.14214
1992	1306152298.57851
1993	1301526413.08892
1994	1237173179.60177
1995	1331504842.5069
1996	1516000252.71614
1997	1634212103.05327
1998	1681465022.18425
1999	1680462556.99462
2000	1874320548.87824
2001	1952754009.02159
2002	2102699743.90728
2003	2182617225.29112
2004	2386288102.12422
2005	2594043148.82268
2006	2913059368.71901
2007	3093615352.07327
2008	3157034259.86115
2009	3332824349.48919
2010	3488031949.79779
2011	3606404176.32414
2012	3971648449.53456
2013	4326558834.04412
2014	4466406137.61913
2015	5292479775.86295
2016	5679709052.14178
2017	6187304542.95278
2018	5833693659.0948