Year % of GNI 1970 0 1971 0 1972 0 1973 0 1974 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 0 1988 0 1989 0 1990 0 1991 0 1992 0 1993 0 1994 0 1995 0 1996 0 1997 0 1998 0 1999 0 2000 0 2001 0 2002 0 2003 0 2004 0 2005 0.319664634888586 2006 0.236795668696002 2007 0.296461384464252 2008 0.280325031319483 2009 0.338178133858418 2010 0.280844970304918 2011 0.370342451602451 2012 0.549604967794255 2013 0.638985733764327 2014 0.926783863024823 2015 1.19174196676201 2016 1.22295986161832 2017 1.12080565885141 2018 0.674573191457825 2019 0.636545623596437 2020 0.694498436428453 2021 0.653043646000412