Year	constant 2011 international $
1990	10081.8743929046
1991	10088.8831708076
1992	9905.1111311663
1993	10142.4206218114
1994	10367.7585790099
1995	10901.449873981
1996	10834.6871101681
1997	10973.2336230096
1998	10706.9385067795
1999	10518.0184694227
2000	11089.8877901931
2001	11051.3679435099
2002	11223.4525806732
2003	11231.9566818303
2004	11761.8734483068
2005	12006.9980985363
2006	12394.0048894557
2007	13061.4135073838
2008	13546.5552584284
2009	13423.9420888066
2010	14194.3421520227
2011	14669.619335982
2012	14892.0019230689
2013	15351.1099926449
2014	15176.7381898475
2015	14490.2858904852
2016	13906.6649506648
2017	13975.2897406872
2018	14068.0476589064