Year % of GNI 1970 0.8083574062647453 1971 1.0958225758064937 1972 1.6356345337326292 1973 1.9326444998762353 1974 2.007453887249543 1975 1.9834826215324646 1976 1.3108856217352556 1977 2.3052708518788556 1978 1.9318908151059486 1979 3.198500662234185 1980 4.987023955746849 1981 3.8853305715314654 1982 4.940911605934898 1983 4.168641783202283 1984 4.821219007015975 1985 4.0001400458377185 1986 5.254087038901631 1987 5.979437210353587 1988 5.600153285864205 1989 6.2519754689351545 1990 8.715629639425389 1991 4.160748583173933 1992 3.1177883549442105 1993 3.944910695121066 1994 3.756950973040051 1995 4.98481133237618 1996 5.155514668786259 1997 4.376643675003492 1998 6.210536373964894 1999 5.393522585269788 2000 4.288923475449158 2001 5.493004018676726 2002 7.7524608196668465 2003 10.09502718052506 2004 7.137172182663061 2005 4.280469829010757 2006 2.7768749062828264 2007 3.2306808135420724 2008 1.930596452237316 2009 1.2531950716881017 2010 1.1539822460868674 2011 2.232742656990322 2012 1.6626354165182229 2013 2.209149880600108 2014 1.771210104276851