Year % of GNI 1976 13.272797454689465 1977 15.490823183726082 1978 15.695083013998408 1979 14.265266397989539 1980 16.620473555790785 1981 17.633998575958767 1982 17.807320388063218 1983 19.150916577427495 1984 17.297674057362094 1985 14.838988802754221 1986 19.284215158042347 1987 20.833010572862587 1988 17.779412265504615 1989 17.622698423135343 1990 18.478872189645855 1991 21.925640761016474 1992 22.041912040587047 1993 16.61142148880754 1994 19.719926168614762 1995 17.63215046515285 1996 16.107393697219266 1997 16.622945028067274 1998 18.045890454043825 1999 17.196029509279434 2000 16.600129719656206 2001 17.4308404590596 2002 19.13108430472879 2003 18.945045411595686 2004 18.011997515818766 2005 15.759814032254663 2006 15.700537978737122 2007 14.351433953575366 2008 11.183258668283573 2009 13.652097789682719 2010 14.83796854879696 2011 15.326564274263067 2012 13.906142444976982 2013 14.452055051060377 2014 14.390971500820132 2015 15.176955736871845 2016 14.533840402195533 2017 13.090945551399406 2018 12.066810400667173 2019 11.577384981342476 2020 14.810706098488385 2021 13.992339375864425 2022 10.403077646482044 2023 13.179334924151487