Year % of GNI 1990 11.9523531500598 1991 11.4366462014767 1992 11.1263427946942 1993 9.56723126232698 1994 9.91839086888085 1995 10.3675402564507 1996 9.5990172950777 1997 9.81888515453411 1998 10.1268418559675 1999 9.40829649225424 2000 9.06632850916015 2001 8.83202611009762 2002 8.83659441136222 2003 8.02249712090243 2004 10.6008654577823 2005 10.2907331100191 2006 12.6631955856872 2007 14.7092110736528 2008 13.2917694071001 2009 9.77394143983509 2010 11.5737132397152 2011 13.6822643527762 2012 12.4897095552379 2013 12.0049802738068 2014 13.2841598519205 2015 13.806503914673 2016 14.0758015049163 2017 14.5107411746539 2018 15.1402863351366 2019 14.7182831928094 2020 13.2463803745989 2021 14.580617422939