Year % of GNI 1990 11.7668507976289 1991 11.2695521261145 1992 10.9720806838348 1993 9.41852075282794 1994 9.77889316957274 1995 10.2358995588272 1996 9.47246911773018 1997 9.70036297666996 1998 10.0167542634144 1999 9.30460966577221 2000 8.96874538496085 2001 8.73867886644233 2002 8.74323100894832 2003 7.93000081306298 2004 10.5129144050857 2005 10.2028568133254 2006 12.5805279386513 2007 14.6274137950819 2008 13.2092359257998 2009 9.68619001439104 2010 11.4895435038224 2011 13.6016249854336 2012 12.4119445545928 2013 11.9297839625993 2014 13.2141309156133 2015 13.7393679446306 2016 14.0119419034158 2017 14.449470456687 2018 15.078992496595 2019 14.6567669020371 2020 13.1828972942106 2021 14.5194695108102