Year % of GNI 1990 0.793481692557014 1991 0.891181830411692 1992 1.13757496293717 1993 0.988865876500349 1994 0.971116474235563 1995 0.866314724022532 1996 0.745233250722282 1997 0.50098883908052 1998 0.608844160082145 1999 0.544951117525924 2000 0.521559789489577 2001 0.530651044325263 2002 0.55614188774978 2003 0.573670070770908 2004 0.556884089926823 2005 0.508505169929909 2006 0.517626496541853 2007 0.525640221016976 2008 0.56510239634333 2009 1.73350961877162 2010 0.602814991952794 2011 0.779494051701058 2012 1.05519684332976 2013 0.887600114822287 2014 0.790187249853027 2015 0.670616278602895 2016 0.642926705998385 2017 0.676800625793637 2018 0.914917899055801 2019 0.919895879203048 2020 0.977042970690804 2021 1.03903854704978