Year % of GNI 1990 5.9907562998111406 1991 8.525309359481815 1992 9.310620660012663 1993 10.77603002469904 1994 11.948676102901576 1995 10.621185736572391 1996 11.209084331675765 1997 11.245578169041362 1998 10.469338637666516 1999 8.935429510813732 2000 8.544587760774208 2001 8.621535227581612 2002 9.99394099660762 2003 11.099914619331027 2004 12.32405807739036 2005 12.61063619257596 2006 14.327948449913574 2007 15.65838841916564 2008 15.688134191903261 2009 16.00117232975778 2010 15.840001066477937 2011 14.089935908232894 2012 14.34664383725875 2013 13.618399692288484 2014 13.845042708837067 2015 13.645744695063305 2016 13.173161511013669 2017 13.66884313395331 2018 12.86482153213332 2019 11.99583307867066 2020 11.817069103143853 2021 12.899235852925079