Year % of GNI 1990 6.868647979236402 1991 6.565259154921213 1992 6.582447107874737 1993 6.193875604673431 1994 7.597916125010774 1995 8.235025602249598 1996 10.537852944996276 1997 10.93872850433334 1998 10.568712807331183 1999 9.953931727171453 2000 9.83525747846815 2001 9.013291755653993 2002 8.574243599319177 2003 8.625136476814307 2004 9.45346058392502 2005 9.606889888789285 2006 10.668489790522507 2007 10.807444204623676 2008 9.364452533618186 2009 7.5339916529679085 2010 9.278645593332564 2011 9.492962739205488 2012 9.933314994391099 2013 10.040096585136451 2014 10.440844484424407 2015 10.466461148762129 2016 10.056451727548518 2017 10.825449543674239 2018 10.594980214987839 2019 10.297995115076022 2020 9.274502947795188 2021 9.59611723915167