Year % of GNI 2000 8.11288151324081 2001 8.06282330439573 2002 8.33678074255753 2003 7.65871518077906 2004 6.91494724877866 2005 10.6063348075941 2006 9.72869552274991 2007 9.32668130277 2008 9.56129807741801 2009 10.7635016479306 2010 4.77172683502562 2011 4.11931402332474 2012 4.00690546724304 2013 3.51346992600027 2014 3.78268099444576 2015 4.69053681745012 2016 4.61154237744265 2017 4.27535322757757 2018 4.32764083719282 2019 4.4543133218959 2020 5.26320596273194