Year	constant 2010 US$
1975	463509339.872633
1976	604054121.51115
1977	697911324.929984
1978	758076017.983832
1979	826904550.808183
1980	892845090.922296
1981	949640574.447707
1982	1006436196.33333
1983	1025688881.50734
1984	1091629421.62145
1985	1116176737.03752
1986	1119545808.20575
1987	1209552308.55753
1988	1291857817.85583
1989	1326031406.6788
1990	1379457680.67578
1991	1390528079.4702
1992	1427108079.4702
1993	1341433509.93378
1994	1381382781.45695
1995	1413072847.68212
1996	1382278145.69536
1997	1398701986.75497
1998	1411046357.61589
1999	1413324503.31126
2000	1378304635.76159
2001	1345735099.33775
2002	1374437086.09272
2003	1411867549.66887
2004	1414264900.66225
2005	1402119205.29801
2006	1364092715.23179
2007	1383721854.30464
2008	1432675496.68874
2009	1334291390.72848
2010	1307165562.91391
2011	1174278145.69536
2012	1055006622.51656
2013	875298013.245033
2014	896397350.993377
2015	947788079.470199
2016	1067774834.43709
2017	1158172185.43046
2018	1222768211.92053