Year % of GNI 1990 12.5830295490095 1991 12.2063516420518 1992 10.6153562183366 1993 10.2074063934413 1994 10.0443823977307 1995 12.6292560012784 1996 12.4476025259778 1997 13.3746005941189 1998 13.9572095184183 1999 12.9471425481172 2000 12.595055643085 2001 12.4018553811535 2002 13.1434955544985 2003 13.7248616018332 2004 12.7041053631286 2005 11.8333510197763 2006 11.4278186155376 2007 10.8157239612549 2008 9.3468061282628 2009 8.50107016940213 2010 7.42906337518618 2011 6.24861372431473 2012 5.95762858620319 2013 6.82676168264188 2014 7.10274434674251 2015 8.62572525727134 2016 9.6765442301857 2017 10.0483544593555 2018 10.3110252509404 2019 10.9506003108759 2020 6.83101667664745 2021 7.97741246970616