Year % of GNI 1975 6.86256948253489 1976 7.36824017324632 1977 7.90948285916413 1978 8.47630397677426 1979 6.89728190463313 1980 3.54495159069886 1981 0.161227821027765 1982 0.590112787963095 1983 2.29352457780074 1984 4.34710502494427 1985 4.66125922625576 1986 6.10175818882459 1987 6.7175229229796 1988 6.22779870697038 1989 6.06404500436888 1990 6.8320848901094 1991 5.36996434325493 1992 5.94435071609663 1993 5.26441648875662 1994 5.24840606039953 1995 6.47983039309654 1996 6.81898267644975 1997 7.50923183704148 1998 7.02563530841332 1999 7.79945712413082 2000 8.9466526956665 2001 9.38752153097472 2002 8.34909887395686 2003 7.87016095510537 2004 8.52482582303943 2005 9.43424697626774 2006 10.9068850538024 2007 9.58548871772778 2008 8.6258505001926 2009 4.32505806379645 2010 6.80784539623229 2011 7.99678464019976 2012 8.01613281557957 2013 9.8404396868478 2014 11.7090885480605 2015 11.8898813743966 2016 12.6746209272385 2017 13.4210983526191 2018 13.0159417907149 2019 12.9587615961568 2020 12.7834609408777 2021 14.7527225651934