Year % of GDP per capita 2001 17.70606 2002 17.76286 2003 18.071855 2004 18.23848 2005 18.207855000000002 2006 19.375095 2007 18.911895 2008 18.506815 2009 19.96577 2010 21.733159999999998 2011 20.22268 2012 19.70147 2013 20.795465 2014 19.90773 2015 19.99539 2016 20.30592