Year % of GNI 1976 7.397173898225027 1977 8.656493113465578 1978 8.049376904430861 1979 8.05472642991522 1980 7.968256688064151 1981 10.658144564671819 1982 10.385383888952965 1983 10.784507072467843 1984 10.103954006200222 1985 9.35994930448198 1986 8.847106083142265 1987 9.891435356896102 1988 10.461418823727069 1989 11.559534541435273 1990 12.84393270265512 1991 12.652945300798486 1992 13.190854488310693 1993 13.26714661787809 1994 14.479940217215866 1995 14.447066277777308 1996 14.140054725730197 1997 14.357780048736824 1998 14.584691527873424 1999 15.117078417369036 2000 15.196860745870243 2001 15.530236049389874 2002 16.346837133844623 2003 17.658593516594216 2004 19.59551725439993 2005 19.945021294288964 2006 21.37637788966134 2007 21.781994161226386 2008 21.203938467954337 2009 19.18780867334697 2010 20.65729702065351 2011 19.964093335962254 2012 20.153813246096114 2013 18.013894932485762 2014 18.226947421909102 2015 16.88271309697118 2016 16.561057963945533 2017 17.77223609161388 2018 17.694503858389616 2019 17.595967804207618 2020 16.637322048495783 2021 17.13178695362037