Year	constant 2011 international $
1993	10600.0996864114
1994	9374.35699829669
1995	8739.68978023994
1996	8897.10596451114
1997	9163.65546791519
1998	9152.03086526524
1999	9308.02996046026
2000	9909.63771587299
2001	11426.9267665775
2002	12668.630105992
2003	13643.2217619336
2004	14675.8143036986
2005	15417.1055881827
2006	16253.8701895642
2007	17232.9885297851
2008	16857.8651615625
2009	17685.9813119791
2010	17928.036339736
2011	18214.6434295493
2012	19168.8267667651
2013	21010.3981918415
2014	21705.6268275217
2015	23175.2846249842
2016	22061.6981236469
2017	22025.0300093177