Year % of GNI 1979 24.128471997658266 1980 23.83579140079713 1981 23.480533196006387 1982 23.89283956306053 1983 23.848171841295652 1984 24.897751955216403 1985 26.20264194296694 1986 23.94115416147611 1987 24.392677646549824 1989 26.632173917263138 1990 23.88918076638645 1991 23.571462741157127 1992 23.713998633314873 1993 24.763378818083993 1994 25.864988849126735 1995 25.016110644771505 1996 25.21168048999032 1997 24.76110070266422 1998 24.404345399891742 1999 24.817152473714852 2000 25.650493759649272 2001 25.85192055837937 2002 27.08371248579649 2003 28.322807246803215 2004 30.176988940412883 2005 30.96330450692556 2006 32.69635282963841 2007 33.46191185584148 2008 34.142905255075 2009 32.543455524822605 2010 33.9641617178644 2011 33.960539033850765 2012 33.69806206287112 2013 33.0375762140304 2014 33.05744366767588 2015 33.50856185550477 2016 33.02878215646733 2017 33.45982742557206 2018 34.234272503834696 2019 33.5483822605608 2020 34.03591428067299 2021 36.04411154287857 2022 35.98646084059182