Year % of GNI 1993 8.17333267710004 1994 9.78028481223045 1995 11.3747224074932 1996 10.927711999456 1997 7.35723569129322 1998 8.85400655353398 1999 7.10905638196731 2000 6.50451933931279 2001 7.14421625698428 2002 6.54159850041144 2003 5.51887569505747 2004 6.89588045545728 2005 8.63580602744461 2006 9.1311795004211 2007 10.7542312211453 2008 9.58823704799554 2009 4.831648734094 2010 3.83670601224383 2011 3.73851045546699 2012 5.17302749815482 2013 4.96712156387596 2014 6.38444514268653 2015 10.5091535658472 2016 9.70901721459019 2017 9.4159894490171 2018 9.60569251801516 2019 9.9146910999396 2020 8.68828160203121 2021 9.78363439454468