Year % of GNI 1991 9.88408972970704 1992 14.400584535594 1993 12.0096496947164 1994 14.0501625695227 1995 20.2216763359593 1996 14.8148423056991 1997 11.4221524204551 1998 10.5171602464152 1999 6.058097979995 2000 6.42649352653491 2001 5.27983526816839 2002 4.99123394932922 2003 4.72058029629981 2004 2.20945136215026 2005 1.09679698916537 2006 0 2007 0 2008 0 2009 0 2010 0 2011 0 2012 0 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0 2019 0 2020 0 2021 0