Year % of GNI 1990 15.7806554063246 1991 14.0583929850202 1992 14.8738381896546 1993 12.4350109800463 1994 11.0259361982268 1995 12.5298358350907 1996 10.0856515460285 1997 11.2028529091024 1998 11.8735439050102 1999 9.20670920259486 2000 6.58254659142197 2001 6.72936127738067 2002 5.68571556194119 2003 4.67872536564341 2004 3.6340100910753 2005 1.63625731295085 2006 0.554906119992275 2007 1.56598112285308 2008 -1.34895152914454 2009 -1.50370729763076 2010 -1.9992546606511 2011 0.0383009978494397 2012 -0.551016221450737 2013 2.57724844077197 2014 1.74556059778051 2015 2.17882668333949 2016 3.00528197086053 2017 4.69560742637313 2018 4.44915873022903 2019 4.44790167032693 2020 1.55050719542476 2021 3.05674083017525