Year % of GNI 1990 1.5259646705772916 1991 1.4295327574850278 1992 1.3440419279738351 1993 1.2161217454861841 1994 1.131033301603852 1995 1.0839312712942815 1996 1.0258591276004152 1997 0.9799022707483176 1998 0.9455022568295768 1999 0.9340658229663468 2000 0.8860117039125075 2001 0.8500859943623821 2002 0.8265407933370477 2003 0.7880349309107624 2004 0.7291823803290352 2005 0.6799806737586813 2006 0.6339237428639868 2007 0.5999309224552949 2008 0.6691269226717098 2009 0.6619739068303623 2010 0.6320172667150669 2011 0.6040828851490797 2012 0.5951647138377659 2013 0.5867689759374618 2014 0.5750369117363523 2015 0.5826306586239227 2016 0.5747418889043256 2017 0.5535153207416033 2018 0.5489737340558535 2019 0.5485497493392505 2020 0.5777561939486996 2021 0.5482825796148765