Year	constant 2010 US$
1981	226271496533.178
1982	199296298449.461
1983	172501720369.978
1984	144144040223.452
1985	131296426301.846
1986	121008328673.614
1987	114432806218.901
1988	123351513534.582
1989	127298260815.678
1990	134960511651.381
1991	131692409812.987
1992	129425090299.782
1993	134439310948.201
1994	137429319040.643
1995	137129474621.051
1996	148296829998.194
1997	157628460286.382
1998	164632417918.123
1999	162608416187.843
2000	171800088691.204
2001	159561487293.075
2002	171030243543.08
2003	192069976667.736
2004	189843078260.518
2005	204295695021.51
2006	247847160679.392
2007	247644955334.28
2008	268656301871.698
2009	275162433448.236
2010	282768453201.035
2011	295294794006.635
2012	310488109288.317
2013	328463407989.016
2014	350623039668.471
2015	352327331476.785
2016	346253814465.03
2017	349616583463.387