Year % of GNI 1990 12.0034461333109 1991 10.8348760271576 1992 9.47127374824331 1993 6.16740295977846 1994 6.78771082844968 1995 4.44103755382923 1996 1.72678068852552 1997 3.23579428815933 1998 0.944402323354489 1999 -0.478563283268888 2000 9.47935046978123 2001 14.2474408464206 2002 9.61549037142487 2003 10.3742279240909 2004 9.80254681937841 2005 15.9605176758866 2006 12.4953878909083 2007 14.5166470118826 2008 4.65970252488867 2009 -0.508959735691248 2010 -4.21517341433944 2011 -12.4085897139449 2012 -0.902406320707434 2013 5.24648830856182 2014 6.02452647092935 2015 5.50156675273016 2016 2.57426581867091 2017 1.56483289431787 2018 4.27513953838264 2019 1.16562464829057 2020 1.71098042205467 2021 5.75978353069627