Year % of GNI 1990 0.471384075514588 1991 0.336683953249927 1992 0.3465437310047 1993 0.57874411225051 1994 0.520937134879414 1995 0.501781994994891 1996 0.51444918744734 1997 0.443645718381773 1998 0.448579748763467 1999 0.476172862842924 2000 0.509415785695014 2001 0.533511980319652 2002 0.696955150537735 2003 0.616929769232656 2004 0.738272145828288 2005 1.02412111301462 2006 1.1105689020995 2007 0.816294560403046 2008 0.784214522813726 2009 0.906765525353686 2010 0.627310444577747 2011 0.592264592093936 2012 0.648685884342211 2013 0.638151402064736 2014 0.600770971196447 2015 0.593728679096528 2016 0.790124681514864 2017 0.937373034142243 2018 0.961992749908404 2019 0.984274773632696 2020 1.17136147382098 2021 1.19243009578826