Year % of GNI 2000 10.4067412169336 2001 10.5987949641065 2002 10.4433237907586 2003 10.8196770250616 2004 10.757813883047 2005 12.9998610001322 2006 13.8152321987248 2007 13.5913992175891 2008 10.8716207645739 2009 8.38507516370167 2010 8.49596968990492 2011 13.2274080845311 2012 13.210601692074 2013 12.3275598933132 2014 13.1138654854862 2015 12.3640033656233 2016 12.6376938824999 2017 14.9874764508271 2018 15.3977080381168 2019 15.5385461422341 2020 14.2965583321277 2021 16.5455895254376