Year	constant 2010 US$
1995	6668.9893430042
1996	7176.14766460402
1997	7812.23743201556
1998	8055.44120892376
1999	7778.71436430861
2000	8109.94913081381
2001	8547.47194112501
2002	9247.09418154329
2003	9629.4058838219
2004	10252.2137579058
2005	10898.0973459167
2006	11395.1150257159
2007	12116.6360592729
2008	12288.7287665324
2009	11258.4040748397
2010	11183.8798464306
2011	11244.5287216829
2012	11017.2245584969
2013	11175.3130444214
2014	11269.285496072
2015	11768.9856682517
2016	11891.2126727207
2017	12485.240741036