Year % of GNI 1990 7.20960711083068 1991 4.81405440809094 1992 6.64021783831424 1993 3.65898316131071 1994 6.04130820343757 1995 4.28577336893336 1996 3.74821744824321 1997 6.84726063318552 1998 6.49395475780848 1999 4.62818821785776 2000 2.50884974315586 2001 5.5516967066639 2002 2.37639187148385 2003 7.84536633512077 2004 7.26494989950356 2005 6.9948418193457 2006 9.11641219823317 2007 6.72350077347357 2008 3.6022292174633 2009 5.68937678579974 2010 3.81721614539361 2011 4.6531435010588 2012 3.40390207951371 2013 5.40060986039626 2014 7.30291857058501 2015 6.21561714734653 2016 6.85916090449909 2017 6.32283067458283 2018 7.29582432558874 2019 6.7213363551941 2020 5.8576351398094