Year % of GNI 1976 15.265459841998332 1977 17.369203233802722 1978 17.350203723611152 1979 16.396512508026117 1980 17.185933497504827 1981 16.820537037960868 1982 16.316991368988294 1983 14.427530178352605 1984 15.762521869679862 1985 18.621976150943464 1986 15.519566160703976 1987 16.812438440682964 1988 14.858215198203338 1989 13.221626521943525 1990 10.298213488625837 1991 11.679264823124532 1992 15.050420422552037 1993 16.59004192050371 1994 13.95080847513947 1995 20.981745592899923 1996 20.349977719947777 1997 19.080674002085924 1998 20.103778577077314 1999 20.422548562805797 2000 21.65169749980321 2001 18.479012002206105 2002 25.164620694399787 2003 25.161321133378767 2004 27.662623071791614 2005 30.600779652775344 2006 29.282380010025136 2007 30.744926512698825 2008 36.30320800224361 2009 36.81056093224031 2010 37.4641253468634 2011 29.373921807625205 2012 34.315460557458785 2013 36.83417777545923 2014 39.01728517485794 2015 39.529710227745646 2016 34.85070025221186 2017 41.46299325616454 2018 42.326138805641975 2019 41.75560937097765 2020 32.43270450648966 2021 30.746511155129607 2022 30.96557929297212 2023 35.96388686715668