Year % of GNI 1990 6.14077315413792 1991 6.13348626867557 1992 7.23388385263442 1993 9.63584131890906 1994 8.83293017107181 1995 7.83072712069961 1996 9.12728844203719 1997 7.86891478717267 1998 8.10825344192929 1999 4.55551094634585 2000 4.64489369299442 2001 4.82827884959699 2002 5.7194235698556 2003 8.67612384536744 2004 1.40010365070198 2005 1.57821616426443 2006 10.0596190484387 2007 12.2253775088312 2008 11.1424570710166 2009 8.56461933000759 2010 7.72239503413403 2011 7.6107560055571 2012 5.98508033301374 2013 4.89063027362674 2014 5.12761745464701 2015 5.65055592412062 2016 5.67002182067662 2017 5.6574283486926 2018 2.23362970756825 2019 3.61152408403267 2020 7.95049431173226 2021 11.7544674324012