Year	constant 2010 US$
1981	56623054652.8923
1982	52457258015.6104
1983	52223474480.1615
1984	57058447128.9967
1985	60509066010.8769
1986	59359248338.56
1987	61431193018.1707
1988	63475688961.5323
1989	77267746612.0914
1990	76066983018.2957
1991	81792554595.7368
1992	70251429133.3389
1993	79560779979.29
1994	81784651704.0269
1995	78673144285.4399
1996	76363528298.2374
1997	92918237980.0649
1998	92740783005.9676
1999	87270368445.4099
2000	95057288574.0226
2001	84351662436.4725
2002	89280135221.1991
2003	107714831211.169
2004	109881492516.587
2005	121719632460.049
2006	172138406844.282
2007	156707534887.427
2008	198378508617.814
2009	157491330453.31
2010	176092457272.834
2011	208878374290.174
2012	201289947079.825
2013	178294186431.932
2014	202669080099.504
2015	202637408150.618
2016	214611014106.141
2017	229747318342.942