Year % of GNI 1975 12.61699253059868 1976 18.172435173842036 1977 26.231890269485913 1978 18.860793333195133 1979 14.784009076416117 1980 17.82404264997942 1981 20.315483979919374 1982 16.82974226865266 1983 20.935496997855573 1984 18.555261505149463 1985 24.821541955928172 1986 21.94148889374426 1987 18.92244209223745 1988 20.99596217509911 1989 15.040624342059129 1990 19.838159485461645 1991 20.302582422007017 1992 15.807178783619367 1993 39.638627781106074 1994 35.60314885261501 1995 24.691733394671274 1996 16.795726582441322 1997 16.4872009968646 1998 16.40983675717927 1999 18.737632629972456 2000 13.01345541526671 2001 9.888968639801883 2002 8.61274501628861 2003 9.581505097246524 2004 12.067498819459423 2005 13.877283732530207 2006 16.104945210637744 2007 16.73740953180562 2008 15.418455306914202 2009 7.584531623133698 2010 8.10830691129217 2011 7.295998226764348 2012 7.3029581172584335 2013 5.674412199569757 2014 6.839823268174153 2015 7.550177449043969 2016 14.146435679461945 2017 13.534408905143374 2018 14.68972640501522 2019 14.300107049636459 2020 14.52863477952768 2021 16.538505529495314 2022 15.807890183169745