Year % of GNI 1990 7.56755805328496 1991 8.02014014920718 1992 12.8534704839507 1993 14.8788224058146 1994 17.2819929638982 1995 14.8303207394484 1996 10.1922773050429 1997 11.0389829765421 1998 14.7387570081799 1999 12.2098973909804 2000 11.1776164501825 2001 13.4514234848151 2002 10.6642606734045 2003 9.56753677279266 2004 9.67433299197739 2005 11.1341295287273 2006 11.0796083057485 2007 6.69188378579935 2008 4.45089374333912 2009 4.97863998112891 2010 6.32851936255667 2011 5.97949923105541 2012 5.01200989188152 2013 2.13445831396482 2014 3.49941190678353 2015 4.09738534139921 2016 5.05201092140614 2017 5.95841596461604 2018 5.5613629466741 2019 7.94554395301748 2020 8.73512287711409 2021 5.59465271335456