Year % of GNI 1982 11.642407090012567 1983 14.353752675388378 1984 15.93706823490041 1985 16.862173028748956 1986 18.501352183706516 1987 19.287020539585534 1988 21.639429661290002 1989 20.0347386509046 1990 13.940874216220845 1991 16.747379053840575 1992 18.62237059539727 1993 20.26264879290843 1994 21.568388426614423 1995 20.402054898087258 1996 20.01352763352468 1997 20.726369901059556 1998 19.225736636425317 1999 16.946438207293053 2000 16.375036744525204 2001 16.471617747542915 2002 17.643724673190476 2003 19.426203162040686 2004 20.373640995609048 2005 20.41169158525897 2006 21.85944647162841 2007 23.453627802417888 2008 23.270472374890947 2009 24.365579763543494 2010 23.66747499583615 2011 20.61720643544979 2012 21.26475592251181 2013 20.04173704834816 2014 20.025352588254187 2015 18.67834674324275 2016 18.003787426930472 2017 18.54935086816223 2018 17.182605271786514 2019 15.851257072167803 2020 15.067244830096222 2021 15.940831289674659