Year % of GNI 1994 24.8516042322005 1995 39.4797860786066 1996 36.1380581835302 1997 32.3681888247985 1998 33.2652204666564 1999 29.0557901263143 2000 6.70760475615725 2001 17.4709463022376 2002 17.898967188518 2003 28.4651752543444 2004 22.2079044295176 2005 20.4240292665753 2006 16.9295054902048 2007 21.6080801725583 2008 22.8009389781808 2009 24.0798251100933 2010 18.517450431943 2011 17.9389323073178 2012 18.4460409676433 2013 17.915491807169 2014 18.0615610514176 2015 17.7825801566528 2016 18.1905014483466 2017 17.6010042547924 2018 9.89474798973223 2019 8.97311766769489 2020 10.2012951450779 2021 9.97062142594133