Year	constant 2010 US$
1978	279807161887.3
1979	264289655649.147
1980	191550969994.151
1981	183522393148.426
1982	231373505530.589
1983	245909106927.631
1984	224687668879.389
1985	229940710195.716
1986	207692572551.137
1987	209407476674.611
1988	196081538551.592
1989	208279112461.25
1990	233742854216.828
1991	262401078811.868
1992	269756288350.716
1993	273196378788.623
1994	266464466796.555
1995	276505323990.989
1996	285411980602.211
1997	289246113302.094
1998	297648343244.361
1999	296850012263.967
2000	316001989473.599
2001	318790912802.916
2002	342659258552.275
2003	372312294413.443
2004	387441704790.917
2005	399656218641.452
2006	420531392187.398
2007	455878727154.871
2008	457255609089.72
2009	460248629814.993
2010	487148670463.768
2011	499995689664.184
2012	465800247662.661
2013	464847211950.83
2014	484417152290.367
2015	477756652723.698
2016	541931739463.749
2017	561730590588.38