Year	constant 2010 US$
1981	421626097553.945
1982	425276301439.219
1983	415723686830.528
1984	417879376840.839
1985	422434087236.122
1986	410746001889.626
1987	402257313078.926
1988	420787538569.195
1989	427159634283.257
1990	451000249400.655
1991	461735127869.899
1992	470846820062.883
1993	478127233641.276
1994	481532342238.641
1995	500827228215.445
1996	535845484235.341
1997	546757272819.689
1998	561522063881.137
1999	566198486417.642
2000	579815923377.44
2001	638383147390.193
2002	656032925043.418
2003	697148103655.688
2004	768789724473.183
2005	820108059640.538
2006	842830953810.375
2007	960390799351.481
2008	965227006497.552
2009	1035444542866.87
2010	1067639552758.1
2011	1099739114560.09
2012	1137689987309.74
2013	1228644514229.53
2014	1254656135644.88
2015	1281766870707.75
2016	1279930163190.31
2017	1303029954906.28