Year	constant 2011 international $
1995	5987.57532829861
1996	6283.593157139
1997	6508.16348285205
1998	6528.30987030451
1999	6757.58346888254
2000	7114.50925067006
2001	7319.4663214104
2002	7633.93860341321
2003	8020.71566895078
2004	8493.10464159731
2005	8953.4065740905
2006	9590.39286697461
2007	10365.8994258351
2008	10825.9443878774
2009	11075.6857002808
2010	11916.8856351484
2011	12579.324895806
2012	13241.9322712078
2013	13859.5073432971
2014	14552.1077747288
2015	15140.3369888492
2016	15771.3914684273
2017	16510.7230625855