Year	constant 2010 US$
1981	421921719450.324
1982	425574482665.3
1983	416015170269.014
1984	418172371735.026
1985	422730275652.086
1986	411033995238.977
1987	402539354609.121
1988	421082572512.412
1989	427459136002.614
1990	451316466897.078
1991	462058872094.74
1992	471176952923.867
1993	478462471142.796
1994	481869967222.023
1995	501178381751.297
1996	536221190718.252
1997	547140630071.026
1998	561915773422.235
1999	566595474818.627
2000	580222459604.239
2001	638830747853.596
2002	656492900596.434
2003	697636906995.082
2004	769328759123.988
2005	820683075990.885
2006	843421902251.037
2007	961064174531.566
2008	965903772570.033
2009	1036170541758.14
2010	1068388125085.73
2011	1100510193400.92
2012	1138487675293.22
2013	1229505974711.65
2014	1255535834098.73
2015	1282665577773.64
2016	1280827582454.13
2017	1303943570521.02