Year % of GNI 1993 2.99956614955183 1994 2.80533929460287 1995 3.45617497381931 1996 5.23049796251875 1997 4.62108792009021 1998 1.47784096022008 1999 7.43279243401257 2000 18.791778781049 2001 13.4880205745663 2002 15.3493383796476 2003 13.8370884013541 2004 16.5778432649471 2005 19.8420160117444 2006 17.7793872709503 2007 8.84825698509955 2008 12.1693303035772 2009 8.26436239307395 2010 8.04715316887993 2011 10.3610796379094 2012 8.8927073233951 2013 7.34702402658142 2014 7.13119543551247 2015 3.56741986896039 2016 3.72608242428358 2017 5.54140615153246 2018 9.02731857906734 2019 7.87586530215463 2020 3.90181185015528 2021 8.74101049295954