Year	constant 2011 international $
1990	323565496360.712
1991	320602229954.157
1992	320462020955.974
1993	320058291554.858
1994	324122256332.639
1995	325680851497.715
1996	327439617999.575
1997	335102195839.289
1998	345121389067.554
1999	350970229698.821
2000	364787308013.505
2001	369574862985.068
2002	370175839396.318
2003	370322342288.166
2004	380603318182.338
2005	392460046038.004
2006	408113841736.769
2007	424894984243.155
2008	434050204376.511
2009	424405143876.456
2010	437148753344.887
2011	444548844577.953
2012	449021113079.239
2013	457337162612.373
2014	468538347161.17
2015	474785692637.856
2016	482388072989.444
2017	490186803121.108
2018	502639639613.39