Year % of GDP per capita 1998 22.27547 1999 27.3503 2001 25.1553 2002 25.05491 2003 26.16631 2004 24.89156 2005 23.04911 2007 22.93953 2008 28.77094 2009 32.12687 2010 30.97741 2011 26.74646 2012 27.10011 2013 23.20386 2014 23.77379 2015 22.25324 2016 21.17125