Year % of GDP per capita 1998 16.97009 1999 17.55097 2000 17.22694 2001 18.87409 2002 19.96582 2003 19.15594 2004 18.620424999999997 2005 18.49543 2006 18.388225 2007 18.447585 2008 18.34378 2009 21.061905000000003 2010 21.91087 2011 20.808825 2012 20.056620000000002 2013 20.795465 2014 20.315375 2015 19.99539 2016 20.29085