Year % of GNI 1970 4.2 1971 4.1825905 1972 4.1825905 1973 4.1825905 1974 4.1825905 1975 4.1825905 1976 4.1825905 1977 4.1825905 1978 4.1825905 1979 4.1825905 1980 4.1825905 1981 4.1825905 1982 4.1825905 1983 4.1825905 1984 4.1825905 1985 4.6 1986 3.9619687 1987 4.249448 1988 4.249448 1989 4.249448 1990 4.5369273 1991 4.4 1992 4.2 1993 4.4 1994 5.2 1995 5.4 1996 4.9 1997 4.8 1998 5.1650204 1999 5.1425102 2000 5.12 2001 5.01 2002 5.05500000000001 2003 5.1 2004 5.1 2005 5.32857142857139 2006 5.55714285714286 2007 5.78571428571433 2008 6.01428571428571 2009 6.24285714285717 2010 6.47142857142855 2011 6.7 2012 6.54500000000002 2013 6.39 2014 6.39 2015 6.39 2016 6.39 2017 6.39 2018 6.39 2019 6.39 2020 6.39 2021 6.39