Year % of GNI 1995 2.49278880319597 1996 2.38311660580935 1997 2.5201965158836 1998 2.36934822322815 1999 2.37939003893493 2000 2.42613717385824 2001 2.43095756700457 2002 2.17889293571212 2003 1.80347813277466 2004 1.4949694682054 2005 1.46417023073077 2006 1.34979743932886 2007 1.13790550840689 2008 1.00413552941171 2009 1.05313325788926 2010 1.13427625672212 2011 1.05490739067516 2012 1.08023446966805 2013 1.083567533587 2014 1.0219317618388 2015 1.23281903865942 2016 1.29158461212741 2017 1.33771650651764 2018 1.23761906212316 2019 1.22831910340203 2020 1.16228011646058 2021 1.13155793917391