Year % of GNI 1990 0.585242748236642 1991 0.506445128027035 1992 0.654112944249587 1993 0.764104523657295 1994 0.94997328176809 1995 0.895691910483919 1996 0.958606969254276 1997 1.0535129010733 1998 1.42481915981454 1999 1.54592503248936 2000 2.20310798706882 2001 2.31458554869293 2002 2.48033378035848 2003 2.00915034690949 2004 1.69726893915312 2005 1.54325972923841 2006 1.0274101544965 2007 0.951379207694817 2008 0.813719006088807 2009 1.06516456859149 2010 1.00997778086463 2011 0.919559114238409 2012 1.15873365090504 2013 0.827287167757885 2014 0.978602767037306 2015 1.14503880699806 2016 1.06946211415059 2017 1.10821164199181 2018 1.13872146694741 2019 1.24712833447654 2020 1.20306269414667 2021 1.26816946014192