Year % of GNI 1980 8.913351716366801 1981 7.59918287152285 1982 10.896134634564104 1983 6.596377237605137 1984 6.857937347740071 1985 6.027668762102476 1986 8.719233970807858 1987 9.556619457448255 1988 10.605409196709667 1989 10.82241037337413 1990 13.547799062073384 1991 12.811020931301494 1992 14.1997386715424 1993 14.3890962236875 1994 17.2741448204035 1995 24.260942934188222 1996 29.17056461982217 1997 23.9290094920198 1998 27.2725044077005 1999 15.635981634536 2000 14.8175188627236 2001 19.05028139422683 2002 24.706925594383318 2003 41.411619346078254 2004 31.357845757579284 2005 27.074635460390127 2006 24.023398528225208 2007 32.39508469419596 2008 33.008721646644176 2009 30.54644889906635 2010 23.92788002303212 2011 25.086120388821364 2012 17.481682755040932 2013 17.66540926992202 2014 17.436797327359628 2015 15.49828515011959 2016 19.06518298660213 2017 18.434797758620785 2018 13.4033433708258 2019 13.089765712209 2020 13.7719540219161 2021 13.9163419337296