Year % of GNI 1990 0.638844211922384 1991 0.554870897283713 1992 0.628188224352889 1993 0.635130705136647 1994 0.618639668793435 1995 0.669642026854396 1996 0.637931449244395 1997 0.617859053670101 1998 0.738701275336254 1999 0.803571639275728 2000 0.916443714257516 2001 1.03915433951345 2002 1.04840089148908 2003 1.04182271701276 2004 1.02373755432669 2005 1.02005577289276 2006 0.972042280788067 2007 0.976611647109192 2008 0.796560072503866 2009 0.899168289421422 2010 0.824703638241034 2011 0.768408279318763 2012 0.77724759967005 2013 0.811873351823481 2014 0.83377049447054 2015 0.936062427721133 2016 0.971852783223658 2017 0.883783995740486 2018 0.999298835757627 2019 1.03930145335023 2020 1.08115270580557 2021 1.16287015321642