Year % of GNI 1992 4.59055510302924 1993 4.03491660367797 1994 4.98227965665505 1995 5.46743035446526 1996 5.75308138891437 1997 6.72212992406844 1998 7.47781784771142 1999 7.63216998226244 2000 8.31645040828436 2001 8.2617509211556 2002 8.37138247341023 2003 8.33002686303942 2004 8.28679683063386 2005 8.34174145180475 2006 8.80432919938654 2007 7.94136545526978 2008 8.30025451960047 2009 8.75326263453044 2010 9.71784201343744 2011 9.41257873934953 2012 9.48109278837312 2013 9.77389502806087 2014 10.2635877213799 2015 10.4418914488864 2016 11.1969645966733 2017 11.1253299024518 2018 11.1795079301363 2019 12.8617077231561 2020 13.6342184320492 2021 14.1213285058272