Year % of GNI 1970 1.5372349 1971 1.5 1972 3.3212277 1973 3.3212277 1974 2.4 1975 1.7 1976 3.3212277 1977 2.1 1978 3.3212277 1979 2.3 1980 3.3212277 1981 5.1052206 1982 5 1983 4.53888888888887 1984 4.07777777777785 1985 3.61666666666665 1986 3.15555555555562 1987 2.69444444444442 1988 2.2333333333334 1989 1.7722222222222 1990 1.31111111111117 1991 0.85 1992 0.85 1993 0.85 1994 0.85 1995 0.85 1996 0.85 1997 0.85 1998 0.85 1999 0.85 2000 0.85 2001 0.85 2002 0.85 2003 0.85 2004 0.85 2005 0.85 2006 0.85 2007 0.85 2008 0.85 2009 0.85 2010 0.85 2011 0.85 2012 0.85 2013 0.85 2014 0.85 2015 0.85 2016 0.85 2017 0.85 2018 0.85 2019 0.85 2020 0.85 2021 0.85