Year % of GNI 1970 3.3 1971 3.3 1972 3.3 1973 3.3 1974 3.3 1975 3.3 1976 3.3 1977 3.3 1978 3.3 1979 3.3412 1980 3.3824 1981 3.4236 1982 3.4648 1983 3.506 1984 3.54720000000001 1985 3.5884 1986 3.6296 1987 3.6708 1988 3.712 1989 3.7532 1990 3.7944 1991 3.8356 1992 3.8356 1993 3.8356 1994 3.8356 1995 3.8356 1996 3.8356 1997 3.8356 1998 3.8356 1999 3.8356 2000 3.8356 2001 3.8356 2002 3.8356 2003 3.8356 2004 3.8356 2005 3.8356 2006 3.8356 2007 3.8356 2008 3.8356 2009 3.8356 2010 3.8356 2011 3.8356 2012 3.8356 2013 3.8356 2014 3.8356 2015 3.8356 2016 3.8356 2017 3.8356 2018 3.8356 2019 3.8356 2020 3.8356 2021 3.8356