Year % of GDP per capita 2003 20.59758 2004 18.0983 2005 19.3919 2007 20.67751 2008 27.82381 2009 23.93507 2010 25.0147 2011 26.91643 2013 30.84302 2014 24.15659 2015 28.75004 2016 27.60237 2017 27.15691 2018 29.72732