Year	constant 2010 US$
1981	221136335220.351
1982	226475038791.605
1983	230543728848.622
1984	235839607436.437
1985	238047814458.597
1986	243106836923.863
1987	252502299970.171
1988	261213153405.849
1989	266514398491.361
1990	273342932877.444
1991	277268215092.762
1992	279387502015.062
1993	294221459838.748
1994	300305562167.635
1995	312108652841.619
1996	321875892811.677
1997	332484391345.279
1998	342748572061.572
1999	355666380069.088
2000	366647336778.143
2001	383309656557.812
2002	403630169269.967
2003	421972103404.55
2004	456799495523.055
2005	488323986824.858
2006	529424344395.121
2007	573429166333.847
2008	614993997034.14
2009	651587077704.697
2010	696153974708.798
2011	733275731025.724
2012	766758383499.05
2013	810813413247.595
2014	853879379038.026
2015	880224617752.261
2016	895524826560.523
2017	910696983573.479
2018	931988302905.17