Year % of GDP per capita 1998 13.36893 2000 14.26927 2002 15.09564 2003 15.48508 2004 13.50403 2005 12.63158 2006 11.6756 2007 12.64539 2008 15.10256 2009 16.47026 2010 15.21726 2011 15.16071 2012 16.45029 2013 15.01836 2014 15.10182 2015 16.63683 2016 18.48666 2017 18.68243