Year % of GDP per capita 2003 19.6426 2004 20.67074 2005 19.32105 2006 19.49586 2007 18.97511 2008 21.28845 2009 25.74526 2010 21.47123 2011 19.26853 2012 18.51143 2013 18.30123 2014 18.28679 2015 17.42974 2016 17.89823