Year % of GDP per capita 1998 12.54322 2001 17.52585 2002 17.79191 2003 26.76978 2004 16.79781 2005 22.47607 2006 21.22325 2007 17.64733 2008 23.21855 2009 24.07497 2010 14.73756 2011 15.58112 2012 15.98498 2013 16.60156