Year % of GNI 1995 2.67445287424506 1996 2.73045056345416 1997 2.32156250354578 1998 2.29177414193282 1999 2.0303017782252 2000 1.72369211905626 2001 1.79245764684669 2002 1.60263683364663 2003 1.28835436147519 2004 1.18910924711214 2005 1.16317313950953 2006 1.07969950466729 2007 0.891865782640066 2008 0.757220860601399 2009 0.844425190670312 2010 0.976178842868244 2011 0.836374943032488 2012 0.891352906598085 2013 0.805012349681068 2014 0.762427170224832 2015 0.963766791125023 2016 0.968870146914013 2017 0.912018168035646 2018 0.87633058325825 2019 0.905173064928296 2020 0.861028394078567 2021 0.808584368906028