Year % of GNI 1989 2.183584541086502 1990 2.6020005986234938 1991 1.703497042650765 1992 1.5927874472210357 1993 1.8690775167759734 1994 1.548862930545175 1995 1.749207771144118 1996 1.9510833571391444 1997 1.6941189217966441 1998 0.3128091987550458 1999 0.7466586812904937 2000 2.0056049615574474 2001 2.2398235939816815 2002 1.8795795287697072 2003 1.697721062200034 2004 1.722600188639385 2005 1.425492307063763 2006 1.520068660231985 2007 1.1962742194626836 2008 1.576380053834174 2009 0.9951575611368655 2010 1.0765263249105044 2011 1.469066194286557 2012 1.4229145936319458 2013 1.2119746751505092 2014 0.9372955907658822 2015 0.6032022697909295 2016 0.36217574721163825 2017 0.4773220747193699 2018 0.6434010731708698 2019 0.4753521172306348 2020 0.23025674453384348 2021 0.7507157515411059