Year % of GNI 1970 33.26614840434129 1971 34.47904704845109 1972 34.98722923392374 1973 32.92466654267033 1974 28.848482294198018 1975 30.796071971727475 1976 27.519607704665468 1977 27.318839995992317 1978 23.062746906380724 1979 21.906496482976827 1980 21.521648686115725 1981 24.858918414007476 1982 27.684422902439326 1983 31.026347577576384 1984 33.46444476220839 1985 43.57274451534695 1986 46.94519174453495 1987 50.13250015296143 1988 45.94450114703746 1989 45.85073682797784 1990 38.23346613334105 1991 36.57406627332247 1992 31.281413466158686 1993 29.80248907449458 1994 27.69996591188924 1995 27.884611634969097 1996 30.714445988485345 1997 30.93771993555861 1998 34.52914743793045 1999 41.031349553318144 2000 35.130703525307794 2001 38.22853578096934 2002 35.23214105842031 2003 40.83051732514626 2004 33.83054658160311 2005 26.428845457208478 2006 24.522561560122867 2007 22.175570508841215 2008 20.09143831237954 2009 23.79760512011866 2010 23.299455998797708 2011 23.74433183454011 2012 22.227795934301888 2013 25.113347771980944 2014 28.239612776794626 2015 39.13514142055078 2016 43.214223446855456 2017 41.134813670799154 2018 40.89452149628123 2019 43.97141986669785 2020 58.256199040710065 2021 54.99440988453426 2022 55.79014011382578