Year constant 2010 US$ 2002 27723.4603891235 2003 27882.7097948152 2004 29603.7734824842 2005 30592.1607999249 2006 29375.276247165 2007 29578.3856170959 2008 30054.0138683035 2009 30112.6271684902 2010 30700.4340081784 2011 30690.4366504784 2012 31252.6636152997 2013 31741.5211298832 2014 32169.5644356757 2015 32182.8929142559 2016 32046.0448496306 2017 31847.6496791422