Year	constant 2011 international $
1995	2916.38219561247
1996	3143.96849110533
1997	3340.94056839112
1998	3454.93665254912
1999	3660.79404950447
2000	3929.35998125177
2001	4160.52449979673
2002	4475.4471667463
2003	4855.57057792365
2004	5277.44231101029
2005	5728.31469501498
2006	6351.49902042674
2007	7126.5864935667
2008	7698.36681822219
2009	8183.34592275296
2010	8931.97345129198
2011	9601.69930075045
2012	10281.8519868051
2013	10880.7556927603
2014	11602.2854108433
2015	12214.7897800566
2016	12895.1303425832
2017	13633.6598426935