Year % of GNI 1996 11.438733780606 1997 10.6894454661468 1998 9.18884023217258 1999 7.21141742432296 2000 7.76355295782116 2001 6.43982796338625 2002 5.03593064204266 2003 5.42002603827932 2004 6.2158578691664 2005 6.28174221881707 2006 6.15801085969437 2007 6.3903242652686 2008 3.64825651126438 2009 -0.651483286807551 2010 1.41730008406876 2011 0.705503617788368 2012 0.470476475752006 2013 0.981996047819046 2014 1.39605822995068 2015 4.19805962930751 2016 5.00343842429096 2017 5.56532962227457 2018 5.08618131394477 2019 4.92099448265871 2020 3.00848690161167 2021 1.87538735503149