Year % of GNI 1983 4.93447406394905 1993 5.32058550622575 1994 5.25436293437008 1995 6.39064774120737 1996 6.24993906125222 1997 6.33469164839222 1998 6.48369706339913 1999 6.42625751520138 2000 6.37389113751163 2001 6.43739227116782 2002 6.29768367549171 2003 6.2739176838763 2004 6.2203409198629 2005 5.7317959389093 2006 5.60182137184579 2007 5.5594359400193 2008 5.4750418564285 2009 5.5824636736168 2010 6.2431203023527 2011 6.36341368905789 2012 6.21770122245246 2013 5.97246705107393 2014 5.54779759225734 2015 5.24485733057104 2016 5.47030648465115 2017 5.51380465849541 2018 5.95235853486569 2019 5.67471243758468 2020 6.16521960421975 2021 6.17512365965184