Year % of GDP per capita 2001 13.94423 2002 12.5487 2003 17.90235 2004 17.18023 2005 16.99654 2006 16.23509 2008 14.28882 2009 14.12152 2010 18.40825 2011 16.02497 2012 18.15235 2013 19.19303 2014 28.72759 2015 30.67578 2016 31.32815 2017 31.95951 2018 31.32456