Year	constant 2011 international $
1994	3640.7817442496
1995	3748.65765860777
1996	3595.09405415535
1997	3987.27940138624
1998	4584.17730792472
1999	4834.39642290916
2000	4125.86295550593
2001	3521.37387316601
2002	2958.19638431568
2003	3287.1686237833
2004	3500.91519700706
2005	3849.00719632045
2006	3650.35529208239
2007	3831.40549452569
2008	3964.89688316348
2009	4091.70421485262
2010	4286.9072848213
2011	4721.29822878412
2012	4926.25847660668
2013	4980.45976539243
2014	4957.34532500535
2015	5103.12900090894
2016	5253.25259951497
2017	5284.35981353163
2018	5313.83305581181