Year % of GNI 1994 0.983864040710369 1995 0.846774974307324 1996 0.546831395932124 1997 0.4738187163045 1998 0.343336613238961 1999 0.387296812630239 2000 0.43471395971848 2001 0.460138978384581 2002 0.470312634718272 2003 0.463512096374228 2004 0.420641669902688 2005 0.456872508491087 2006 0.440207797507808 2007 0.478465977017144 2008 0.438622753310436 2009 0.40126869496684 2010 0.419828758769712 2011 0.388607217767896 2012 0.420955572482012 2013 0.41126718554435 2014 0.420115254889577 2015 0.394517727491007 2016 0.392968429932398 2017 0.377735090466396 2018 0.356611758142551 2019 0.383504803891008 2020 0.386221657430023 2021 0.352236203195149