Year	constant 2011 international $
1990	7744.43468663009
1991	7715.46901910238
1992	8208.57686686491
1993	8566.76894703055
1994	8727.23457100697
1995	8864.72188851843
1996	8759.92554629255
1997	9032.10637772079
1998	9445.1738779957
1999	9611.58918248961
2000	9786.22377290454
2001	9947.79632940829
2002	10107.7517626226
2003	10378.1280436856
2004	10671.5917595286
2005	10928.5848796273
2006	11557.9895073086
2007	12333.9562268402
2008	12738.2612894688
2009	12453.8619562105
2010	12908.8321995121
2011	13302.9282818466
2012	13777.7571957158
2013	13929.6083754765
2014	14259.0465204072
2015	14617.1486695105
2016	15077.490098047
2017	15430.3086304753
2018	15684.5737406668