Year % of GNI 1990 8.148541039373148 1991 7.506024728546372 1992 6.827618467448688 1993 5.987095869312415 1994 7.114167102524001 1995 8.121700305135114 1996 10.854660566809292 1997 11.30987470168104 1998 10.889405270403762 1999 10.09534100050711 2000 9.915822171949477 2001 8.977378924883332 2002 8.23015661367556 2003 8.04308579187361 2004 8.672772600362258 2005 8.565282485467833 2006 9.362535234280594 2007 8.96719122944603 2008 6.83577038786519 2009 4.568166097963846 2010 6.216610941814325 2011 6.856686878415945 2012 7.287364999629765 2013 7.963415198656336 2014 8.590499742822912 2015 8.663440207204633 2016 8.24632290773232 2017 8.994823579869022 2018 8.850737870593349 2019 8.753386000961909 2020 7.248430226577024 2021 7.5265667946578825