Year % of GNI 2005 9.31114063779633 2006 10.192217073005 2007 11.9074365433911 2008 11.9874668362842 2009 7.34465538012063 2010 8.25128105381055 2011 8.74561853318616 2012 8.15885641105679 2013 7.53011382959004 2014 7.98137175919502 2015 7.83607241093106 2016 9.29193884307604 2017 8.48763843771542 2018 8.86539080658002 2019 9.54095517820834 2020 8.77567446384658 2021 8.55827560020314