Year % of GDP per capita 1998 26.04068 1999 25.29324 2000 24.66126 2001 25.29121 2002 26.88653 2003 26.6065 2004 25.46407 2005 25.36203 2006 23.84324 2007 22.80694 2008 28.20173 2009 26.9248 2010 26.2857 2011 25.89147 2012 25.97821 2013 26.41812 2014 26.39044 2015 24.45516