Year % of GDP per capita 1998 16.89746 1999 16.40665 2000 15.881 2001 16.57645 2002 17.19065 2003 18.51165 2004 20.12035 2005 20.64926 2006 21.55856 2007 22.52579 2008 26.759 2009 28.67095 2010 27.67082 2011 27.56937 2012 25.84874 2013 23.72087 2014 21.61642 2015 16.4223 2016 15.94208