Year % of GNI per capita 2003 8.9 2004 8.9 2005 9 2006 2.5 2007 2.4 2008 2.4 2009 2.3 2010 2.4 2011 2.4 2012 2.3 2013 2.3 2014 2.3 2015 2.3 2016 2.3 2017 2.3 2018 2.3 2019 2.3