Year	constant 2011 international $
1990	28413.7855785463
1991	28530.3551822869
1992	28831.1879987376
1993	28906.3656777419
1994	29552.9447030941
1995	30168.5872271138
1996	30856.9421658853
1997	31726.0893474402
1998	32415.2760328814
1999	33375.844915707
2000	34550.8770725052
2001	34943.6598116518
2002	35346.4660543218
2003	35901.1200119248
2004	36877.9473531106
2005	37713.1770878155
2006	38651.6341838964
2007	39442.8135262332
2008	39328.8804367841
2009	37758.3324323525
2010	38654.8934416159
2011	39186.6921629279
2012	39457.6893427665
2013	39807.9013749364
2014	40380.6689560032
2015	41035.2545093216
2016	41533.6675920009
2017	42340.1892401485
2018	43117.8782604879