Year % of GNI 1995 24.0486704976836 1996 24.4667020821513 1997 25.5756805025517 1998 25.9218811568561 1999 25.2521393566679 2000 25.6136193490208 2001 26.1922194673748 2002 26.0318402616981 2003 25.5538953907545 2004 26.045202059598 2005 26.8013278441941 2006 28.7908154161604 2007 29.4016417656737 2008 28.1504581130533 2009 22.7642476977774 2010 22.2039954803438 2011 21.8644762646778 2012 20.6902085086989 2013 22.2134949798977 2014 24.6698178244761 2015 23.8248051215299 2016 24.0656702884775 2017 26.9599723636791 2018 27.8081128237126 2019 27.0716487194781 2020 27.8324114816264 2021 26.2549818914097