Year % of GNI 1970 1.2421903446237934 1971 1.2744939563986413 1972 1.1246249877811616 1973 1.3802512138768108 1974 1.3430214840290606 1975 1.7109977953963698 1976 1.578241975884071 1977 1.3325193514108937 1978 1.368215679301848 1979 1.3699837788602782 1980 1.2974833437582323 1981 1.0394481316875637 1982 1.0482756494060737 1983 1.0139605547938013 1984 0.9986634434296167 1985 1.0521511544773332 1986 1.202577197087331 1987 1.2203658346985629 1988 1.1867930957377928 1989 1.1649442863500081 1990 1.4447813147097623 1991 1.4760879327616252 1992 1.197952869978838 1993 0.9147527686182646 1994 0.9600410161858488 1995 0.8256480326817334 1996 0.7976347100635784 1997 0.5722395803141157 1998 0.6206745049742499 1999 0.5941059463508994 2000 0.4959283398005418 2001 0.5826296315062152 2002 0.5947382394334634 2003 0.5652619449900045 2004 0.49318401129330813 2005 0.49002776621780025 2006 0.41735635467429866 2007 0.3759874402173061 2008 0.4117718112861487 2009 0.4562940628662737 2010 0.4055504453891805 2011 0.3883718958208393 2012 0.3548337027764695 2013 0.46957905267880456 2014 0.4340634299042259 2015 0.4481411233418108 2016 0.4890099909945404 2017 0.47266262350354127 2018 0.5096575207992765 2019 0.463156130139828 2020 0.5836912996464703 2021 0.5308927830556674