Year constant 2010 US$ 1994 11768.3830190297 1995 11453.4302558781 1996 12202.1499256119 1997 14075.5211876642 1998 14863.4593200941 1999 15418.6509360814 2000 17813.9587689628 2001 17686.7136881907 2002 18248.4104058303 2003 18919.928544741 2004 20800.8185194401 2005 21606.8455779286 2006 21907.3270142388 2007 22087.2991330156 2008 23530.9105281263 2009 24447.26626184 2010 23501.7067820541 2011 23394.2955359629 2012 23004.6212837287 2013 24586.5968902476 2014 25433.0140095728 2015 26185.5487278714 2016 26402.7974291933 2017 27662.657276851 2018 21947.2616882082