Year	constant 2010 US$
1991	9619.62033922071
1992	9790.11749579336
1993	9942.3748662763
1994	10444.1562647741
1995	10891.600492753
1996	11736.9770806997
1997	12006.3225149645
1998	12090.9545425897
1999	12094.3195012972
2000	11965.3843497182
2001	11092.7063810262
2002	11126.1553089891
2003	11040.6561110676
2004	11573.6432571891
2005	11781.6220211016
2006	12177.558839546
2007	12620.9107405635
2008	12631.2326157749
2009	12214.0292195255
2010	12249.9874709598
2011	12552.7940920991
2012	12575.3344136228
2013	12631.0358743357
2014	12970.6140371402
2015	13057.0365619246
2016	13150.5582668504
2017	13413.1660312623
2018	13564.5698097004