Year	constant 2010 US$
1995	8563.04238974693
1996	9191.21024049168
1997	9849.94425153216
1998	10039.5039734808
1999	9988.64539189695
2000	10468.2322378263
2001	11254.4472767477
2002	11838.7126476264
2003	12495.8952402788
2004	12981.4312696391
2005	13497.5246952631
2006	14151.2303560564
2007	14902.1883598146
2008	15207.4720126421
2009	14113.4449175543
2010	13937.1422658809
2011	13937.7685994655
2012	13658.7955029354
2013	13629.5352207033
2014	13673.1910855488
2015	14117.2910112339
2016	14718.9331896949
2017	15331.9024818337
2018	15870.281155071