Year	constant 2010 US$
1981	87043088476.5932
1982	91781560564.0882
1983	95239503369.7076
1984	96299945502.041
1985	101353696248.213
1986	105899184034.974
1987	108514441264.167
1988	113425028730.157
1989	115884687978.646
1990	119672167877.1
1991	122879555300.078
1992	126374441285.196
1993	128546049956.655
1994	131800757282.435
1995	136271805057.884
1996	141788773203.219
1997	146686939023.935
1998	151575166364.463
1999	158484610832.918
2000	163716448012.152
2001	172416395920.056
2002	184966128380.698
2003	191633238162.765
2004	214520816571.565
2005	232429674514.975
2006	252939198673.324
2007	276376331893.266
2008	301109107833.359
2009	325950065782.291
2010	355831916149.217
2011	374694060429.093
2012	392980452280.808
2013	420155483835.894
2014	445418598496.349
2015	466454668847.946
2016	475874978141.39
2017	486888699234.584
2018	505288690681.642