Year	constant 2015 US$
1995	7452.424265945575
1996	7616.627041356746
1997	8064.289594280539
1998	8344.474406968186
1999	7467.188711702009
2000	8034.506743582689
2001	8239.064392849416
2002	8685.869020999502
2003	9321.967725647275
2004	10333.457987981674
2005	11725.37347312405
2006	12185.23165579323
2007	12782.185020207437
2008	13406.197615586576
2009	13963.46376817961
2010	14830.404073287755
2011	15739.214310072246
2012	15864.728862346612
2013	15430.461289367278
2014	14129.296306697048
2015	13918.094308057496
2016	13260.898956883582
2017	13197.40036168812
2018	13580.41600160644
2019	13847.671127185355
2020	13586.194761838062
2021	14241.354042535619
2022	14767.64099311704