Year % of GNI 1976 15.2654509787871 1977 17.3692032338027 1978 17.3502037236112 1979 16.3965125080261 1980 17.1859334975048 1981 16.8205370379609 1982 16.3169762636124 1983 14.4275301783526 1984 15.7625218696799 1985 18.6219761509435 1986 15.5195627722002 1987 16.812438440683 1988 14.8582151982033 1989 13.2216246673899 1990 10.2982117100154 1991 11.6792648231245 1992 15.050420422552 1993 16.5900419205037 1994 13.9508084751395 1995 20.9817455928999 1996 20.3499777199478 1997 19.0806740020859 1998 20.1037785770773 1999 20.4225485628058 2000 21.6516974998032 2001 18.4790120022061 2002 25.1646206943998 2003 25.1613211333788 2004 27.6626230717916 2005 30.6007804307611 2006 29.2823800100251 2007 30.7449265126988 2008 36.3032080022436 2009 36.8105609322403 2010 37.4641253468634 2011 29.3739855714259 2012 34.3154666039445 2013 36.8341852711137 2014 39.0173101341573 2015 39.5297306208101 2016 34.8507280515906 2017 41.4630051996492 2018 42.3261501843519 2019 41.7556016646119 2020 32.4352319215556 2021 32.4993897789973