Year % of GNI 1970 0.000686571991197428 1971 0.000590061317606794 1972 0.000277120847468025 1973 0 1974 6.00000678887933E-05 1975 0.000406571395054135 1976 0.000178753239159098 1977 0.000116700415848535 1978 4.26863781167847E-05 1979 3.36769458255431E-05 1980 4.78510690592134E-05 1981 4.657161984063E-05 1982 8.6714018782923E-05 1983 7.07680671188519E-05 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 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0