Year % of GNI 1984 10.8654722975862 1985 10.0112017066545 1986 10.0013037355606 1987 10.1893702078506 1988 10.1483394119982 1989 10.4216940466764 1990 12.0444496804531 1991 13.373528158534 1992 14.2845178521539 1993 14.7200779394956 1994 14.5804641206942 1995 14.7761929263608 1996 14.4287100762373 1997 15.1335387968866 1998 16.3732060021371 1999 15.2768256342374 2000 16.1184506542604 2001 13.4493856609352 2002 12.0235809234786 2003 13.1080613080714 2004 12.8614921251174 2005 13.2113509402741 2006 12.7404684884952 2007 12.7399134945262 2008 14.4671214880531 2009 14.570449660381 2010 15.9155226466272 2011 14.8686429879469 2012 13.0483175667176 2013 13.108897046329 2014 13.2376709793194 2015 14.4525226779656 2016 15.1076454115009 2017 15.7829892578126 2018 16.8795948407982 2019 17.5805561735339 2020 18.3558730499325 2021 19.1216407295391