Year	constant 2010 US$
1995	1574.28146875465
1996	1358.17854908864
1997	1359.88594866797
1998	1056.57717678934
1999	1032.95654728186
2000	995.449533368529
2001	1022.38174335365
2002	1446.7009633157
2003	1266.6119105707
2004	1605.3458731616
2005	1699.52482257151
2006	1958.54289362307
2007	2485.63818997807
2008	2589.47625078407
2009	2900.56678881867
2010	3112.59879459885
2011	3252.7494575276
2012	3527.34124993319
2013	3716.20940648014
2014	3947.24175190122
2015	4218.90326802241
2016	4516.18243550275
2017	4712.08337493258