Year % of GDP per capita 1998 14.00068 1999 16.04796 2000 12.89406 2004 15.12669 2005 14.4607 2007 9.91732 2008 14.72197 2009 14.98617 2010 15.0084 2011 14.43288 2012 14.67586 2013 16.23337 2014 16.88747 2015 15.68956 2016 15.63588 2017 17.26919 2018 17.64699