Year % of GNI 1981 27.16824199459306 1982 31.84298583278481 1983 34.919670651340965 1984 37.16528287835124 1985 44.336203545122835 1986 45.0865371772782 1987 47.95687348458513 1988 45.06724247382821 1989 42.79980515529647 1990 38.19324699219315 1991 36.58312790407086 1992 62.45770732783392 1993 65.01145650687563 1994 78.451827801811 1995 72.03789152554523 1996 67.76974001932638 1997 60.129111606076165 1998 65.06936193956346 1999 59.942602380555556 2000 46.74967747469708 2001 44.63391323391938 2002 43.770566106303924 2003 43.92226059177962 2004 37.98324926929777 2005 30.67779437105191 2006 21.78760067369774 2007 19.82189446857213 2008 18.469670418777927 2009 19.321957928046178 2010 17.029288880627583 2011 24.334777112073684 2012 28.783513852116805 2013 34.57771305374284 2014 34.3176480746062 2015 36.448499888065385 2016 37.26157111986513 2017 37.16919226869944 2018 45.9818654262711 2019 45.645375771485185 2020 50.35974057960442 2021 50.435369393017815 2022 44.48582415309194