Year % of GDP per capita 2003 12.27658 2004 9.86897 2005 10.5907 2006 36.22043 2007 18.78327 2008 18.37564 2009 17.54821 2010 13.78714 2011 11.79305 2012 11.08503 2013 10.62756 2014 9.01498 2015 8.65312 2016 7.82649