Year % of GNI 1992 6.699839239631178 1994 8.288189998079165 1995 14.502796214877746 1996 14.604938441346883 1997 13.43466612132988 1998 14.080075442025848 1999 8.997810875951382 2000 5.772664590927464 2001 6.1888713298374265 2002 6.866317523319994 2003 9.966657824043917 2004 7.530932187884457 2005 6.745174894949455 2006 5.896397653454299 2007 7.257687406044107 2008 7.058430044809115 2009 6.3855798902049985 2010 5.272893347670414 2011 4.594169174747923 2012 5.474853759802335 2013 5.810508773295008 2014 6.00969912583215 2015 6.391201014571105 2016 7.240444744495605 2017 6.794088316132861 2018 4.5897548631411915 2019 4.450161164726571 2020 4.939006830598289 2021 5.098599254781329