Year % of GNI 1990 -0.24936466207065244 1991 1.5241637512271193 1992 3.509062334064263 1993 5.409637124378718 1994 7.895070040267233 1995 7.093960711969835 1996 8.629314263202449 1997 8.883491835890313 1998 8.841504224094136 1999 8.60630416326183 2000 8.558599562663538 2001 8.516455576190138 2002 9.309051467788258 2003 10.293461277904896 2004 11.772422970763248 2005 12.081117458179508 2006 13.667527796412976 2007 14.94520970716282 2008 14.537090611408436 2009 14.078068259672902 2010 14.887247176063436 2011 13.509091393771802 2012 13.697936748460787 2013 12.66569514499052 2014 12.79265039026657 2015 13.278925252124802 2016 12.811593602978926 2017 13.364548763115598 2018 12.749722222174864 2019 12.126426563559493 2020 12.024394640676746 2021 12.52868206001618