Year % of GNI 1990 0.356587292294244 1991 0.391796844891859 1992 0.378360257002243 1993 0.428814511505667 1994 0.600164709275374 1995 0.514525007777748 1996 0.574386946668671 1997 0.747844439451525 1998 0.710638798543598 1999 1.03247593930754 2000 1.23689955335447 2001 1.26960625232108 2002 1.26955994685454 2003 0.855202680677346 2004 0.815988237232681 2005 0.832181325698287 2006 0.817150356060144 2007 0.745165249884583 2008 0.741371094911738 2009 0.710565357135678 2010 0.75627163750659 2011 0.747380392584325 2012 0.963499244061949 2013 0.940692587721341 2014 0.64624940032814 2015 0.761306137043243 2016 0.734504575336735 2017 0.789428546750368 2018 0.715351091145126 2019 0.775131249813015 2020 0.777504978718446 2021 0.772367089249312