Year	constant 2011 international $
1990	28970.2857597451
1991	29220.514243989
1992	29702.2958290316
1993	29881.9526762448
1994	30651.1830779321
1995	31291.6948627878
1996	32033.9714283222
1997	32939.5309579057
1998	33636.1091632796
1999	34542.9815407154
2000	35769.7225007828
2001	36068.4508331258
2002	36409.5874546362
2003	37038.5798222823
2004	38089.8740718327
2005	38956.7415025756
2006	39933.019996455
2007	40735.933212089
2008	40647.012787992
2009	39069.7644033415
2010	40018.5418697287
2011	40683.0819349895
2012	41023.8811011839
2013	41399.3042585848
2014	42039.2098300492
2015	42797.2438479258
2016	43293.8260322453
2017	44041.4841851082
2018	44829.9883581388