Year	constant 2010 US$
1991	14593.2096231294
1992	15134.8856451212
1993	14518.990690633
1994	13836.7921352035
1995	13587.5613754593
1996	13751.3425464232
1997	14043.1414514244
1998	14461.9405064205
1999	14391.8395482388
2000	14389.1746529891
2001	14625.7475730085
2002	14325.5732634509
2003	14458.4189459738
2004	14981.131209157
2005	15592.4922127045
2006	17120.7010610844
2007	18574.0740844499
2008	20159.3115912791
2009	20617.624702074
2010	21284.5014914272
2011	22855.9534887348
2012	23158.5370168658
2013	23739.2813269285
2014	23980.086066664
2015	23550.3397462913
2016	24112.4267824827
2017	24312.1906964244