Year % of GNI 1990 12.5751818166825 1991 11.2734921525596 1992 18.5240334192767 1993 28.1039214699242 1994 21.0059146701473 1995 18.2172998162164 1996 17.7874296636488 1997 17.7336481519873 1998 15.4692161336346 1999 14.3730330638068 2000 12.3635421172492 2001 12.9239876914564 2002 11.6762959945777 2003 12.2877382342329 2004 15.0882379553858 2005 9.68308274731666 2006 11.0689406607013 2007 8.87624722750598 2008 1.08706553049077 2009 8.64390680168247 2010 9.76790582135474 2011 4.87957790657313 2012 7.48970141537731 2013 8.15572709043045 2014 10.2709915221662 2015 14.289596317697 2016 17.2487143246164 2017 17.6052997861985 2018 18.3411516496838 2019 18.5227736474059 2020 23.4864442516523 2021 31.0514231612009