Year % of GNI 1975 9.263718912090015 1976 9.585951673468847 1977 9.183314071690663 1978 9.685059441748924 1979 9.466060007739783 1980 7.809151114672744 1981 5.58180821761273 1982 5.003782771438257 1983 5.206628604923752 1984 5.755204559396194 1985 5.904098981720297 1986 7.0606895915831025 1987 6.632400463330772 1988 7.769949404228543 1989 8.19917618268188 1990 8.426949577710241 1991 7.5016733082458416 1992 6.7367978088254485 1993 5.908514026013863 1994 6.21462431734081 1995 7.177207908120403 1996 6.948427769038732 1997 7.528314292973075 1998 7.906034745467373 1999 7.647953195867306 2000 7.332204527885569 2001 7.172857404662363 2002 6.866248560873709 2003 6.261844164128359 2004 7.113124358405157 2005 6.974920763586116 2006 7.665065799842619 2007 8.312108434886053 2008 6.568344006609944 2009 3.3969363895347975 2010 4.095825120721546 2011 4.866027107652666 2012 4.291354326795673 2013 4.493001936232979 2014 5.264541013655723 2015 6.0012656257374 2016 6.553657787907834 2017 7.212470561883254 2018 7.593509148532142 2019 7.6604604266927865 2020 5.438729900167967 2021 7.4294658585487205