Year	constant 2011 international $
1990	18111351660.4384
1991	16127417814.1925
1992	15540220279.5881
1993	17699718706.1231
1994	18411739176.9219
1995	20086485519.6242
1996	20737363642.0995
1997	21338786637.7303
1998	21960667273.6566
1999	23396196075.0928
2000	23572836610.9
2001	24139927441.4291
2002	24740167557.9956
2003	25592601493.2447
2004	26353502750.1632
2005	26932913532.7096
2006	27267589160.5989
2007	29005049896.5571
2008	29697643135.5369
2009	29963839458.7451
2010	30339490250.385
2011	30332384762.598
2012	29591172819.6545
2013	28376784760.1083
2014	28921213174.8709
2015	29592561780.4142
2016	30755809323.2508
2017	31339901744.3108
2018	32044413374.6711