Year % of GNI 1982 11.642407090012567 1983 14.353752675388373 1984 15.9370682349004 1985 16.86217302874896 1986 18.501352183706516 1987 19.287020539585534 1988 21.639429661289988 1989 20.0347386509046 1990 13.940874216220852 1991 16.74737905384058 1992 18.62237059539727 1993 20.262648792908447 1994 21.56838842661443 1995 20.402054898087265 1996 20.01352763352469 1997 20.726369901059552 1998 19.225736636425324 1999 16.946438207293056 2000 16.37454469402059 2001 16.471013516652135 2002 17.64323070072489 2003 19.42577064798452 2004 20.373245616804585 2005 20.411246678388498 2006 21.85903570306621 2007 23.45326705607387 2008 23.270166987481367 2009 24.365294448767163 2010 23.66714972930117 2011 20.616880262569378 2012 21.26442665260486 2013 20.041361877148933 2014 20.02498690576405 2015 18.67795507052725 2016 18.003377886947977 2017 18.548975607391583 2018 17.182216886711203 2019 15.850865019243816 2020 15.06683966888368 2021 15.940422582077705