Year % of GNI 1990 1.4827820265365 1991 1.53796462343635 1992 1.4611266972883 1993 1.68139300836828 1994 1.63079879804305 1995 1.49367524294909 1996 1.48621739128799 1997 1.49140985502436 1998 1.52464635515504 1999 1.58183331589702 2000 1.87149600729382 2001 1.98152158078392 2002 1.9740120758893 2003 1.71221267610672 2004 1.65820886546182 2005 1.7459059500933 2006 1.78716374393889 2007 1.72800105544843 2008 1.5996171569551 2009 1.68980389201962 2010 1.78180528224646 2011 1.70939492559601 2012 1.90156246585848 2013 1.93095650130587 2014 2.07636873621815 2015 2.37640682540296 2016 2.44985828700267 2017 2.722797011619 2018 2.81166857087759 2019 2.9884417664734 2020 2.78897750511433 2021 2.81544257310428