Year % of GNI 1970 3.2904348 1971 3.2904348 1972 3.2904348 1973 3.2904348 1974 3.2904348 1975 3.2904348 1976 3.2904348 1977 3.2904348 1978 3.2904348 1979 3.2904348 1980 3.2904348 1981 3.2904348 1982 3.3 1983 4.2914863 1984 4.3 1985 4.0746102 1986 4.1 1987 4 1988 4.3476185 1989 4.3476185 1990 4.3476185 1991 4.3476185 1992 4.6710735 1993 4.7 1994 4.6710735 1995 4.6710735 1996 4.6710735 1997 4.6710735 1998 4.1758256 1999 3.8643692 2000 3.55291280000003 2001 3.24145639999998 2002 2.93 2003 2.93 2004 2.93 2005 2.93 2006 2.93 2007 2.93 2008 2.93 2009 2.93 2010 2.93 2011 2.93 2012 2.93 2013 2.93 2014 2.93 2015 2.93 2016 2.93 2017 2.93 2018 2.93 2019 2.93 2020 2.93 2021 2.93