Year	constant 2010 US$
1970	262254179843.385
1971	273005084089.913
1972	304471712880.967
1973	348460583869.312
1974	381901051267.059
1975	418277721553.16
1976	449196954519.1
1977	464473799103.489
1978	488282843929.184
1979	508082221612.616
1980	551901337388.661
1981	543901298170.13
1982	488439158140.713
1983	396512833998.332
1984	403131763409.525
1985	424363939303.411
1986	462944872844.348
1987	466439869828.984
1988	465089835958.002
1989	456508533326.786
1990	446732052309.273
1991	488373565224.253
1992	512395861195.004
1993	535771308648.607
1994	597481307917.251
1995	550726553396.55
1996	575420909099.674
1997	641201003494.336
1998	665709364109.757
1999	618589025358.071
2000	647818433467.588
2001	629908733911.772
2002	605595058076.278
2003	592955531573.243
2004	657493303579.482
2005	706010904774.818
2006	784550498466.704
2007	883105240834.467
2008	958897708165.608
2009	890661712535.888
2010	994642951764.217
2011	1077293929754.31
2012	1116630562323.02
2013	1140209163777.94
2014	1116051134644.8
2015	1062111482532.39
2016	1001585791178.27
2017	1001581314015.74
2018	1021277903859.83