Year % of GNI 1990 11.8751614604276 1991 4.09335853081723 1992 1.81730391863933 1993 3.36558745297407 1994 6.80060171503749 1995 12.0228386361225 1996 11.4936128895411 1997 15.4057739360937 1998 16.7594274005891 1999 17.2343031619825 2000 18.9916066965044 2001 19.4575779538094 2002 18.3820208381755 2003 15.6187940349364 2004 17.0764288499 2005 15.9103295198998 2006 15.7106954684938 2007 17.2063055577239 2008 15.2091781773368 2009 9.68447160033866 2010 10.2393837384749 2011 9.62835365525781 2012 8.30300765923454 2013 7.09653144160584 2014 7.46830332455003 2015 7.59989827899237 2016 8.06028798241424 2017 9.83639826722796 2018 9.83658122906539 2019 9.89629090560493 2020 10.6979879578986 2021 11.2338317691308