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 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0.00829273231706039 2013 0.00508774572895007 2014 0.00329127391815651 2015 0.0036938013236487 2016 0.0011523577651826 2017 0.00165028596534839 2018 9.1499698210794E-05 2019 0.000302088680687493 2020 0.000307680026814753 2021 0.000470910897684874