Year % of GNI 1970 8.69679377907152 1971 9.08553952827208 1972 9.48678768299864 1973 9.68515094392776 1974 8.87412682360883 1975 9.61469964921423 1976 10.3096091684652 1977 11.1581339352559 1978 10.7184564629478 1979 10.1582142931181 1980 9.43952560318377 1981 9.59670938643709 1982 9.6930420778226 1983 9.7636985668697 1984 10.0287318894489 1985 10.5981106084143 1986 10.4525431477813 1987 10.9273875957116 1988 11.9383246687241 1989 11.9993735904492 1990 11.801483538093 1991 11.9167820738037 1992 11.7222878257922 1993 11.7870031086211 1994 11.9933238446921 1995 12.5858274047515 1996 12.5380123032845 1997 14.7794778533769 1998 18.4901177158255 1999 16.4040467344107 2000 12.2749865663621 2001 12.1723946604001 2002 10.6727364693981 2003 9.19084392334343 2004 9.9997810890639 2005 9.95073711089438 2006 15.4717974045873 2007 15.4690633202016 2008 16.0562330526588 2009 16.8785852346088 2010 17.4753689547599 2011 16.8011727560651 2012 16.5999461159191 2013 16.3943891959085 2014 16.4107486350873 2015 16.9967586342551 2016 17.287600919258 2017 16.8469245206371 2018 17.0498148687459 2019 17.2123518385387 2020 18.1681323076143 2021 18.0788699564823