Year	constant 2010 US$
1993	4661.29334022587
1994	4122.28461408493
1995	3843.19572206441
1996	3912.4179966745
1997	4029.63061370777
1998	4024.51880490238
1999	4093.11792802629
2000	4357.66923477754
2001	5024.88270978977
2002	5570.90998102088
2003	5999.47742186335
2004	6453.55020235485
2005	6779.52601671091
2006	7147.48531701414
2007	7578.04332435207
2008	7413.08637962627
2009	7777.24260561145
2010	7883.68400920486
2011	8009.71675970065
2012	8429.3098358696
2013	9239.12341057241
2014	9544.8436118253
2015	10191.1116948042
2016	9701.42258847414
2017	9685.29813283902