Year % of GNI 1990 1.4682920306589966 1991 1.5718410710913309 1992 3.0431150568136687 1993 3.099425429382753 1994 3.32305976726424 1995 3.030576218167661 1996 2.9909645429498353 1997 3.1637045711277807 1998 3.605289454430019 1999 3.793108054714322 2000 3.463436373757422 2001 3.8088421268211476 2002 3.9762754918770904 2003 3.525251520898281 2004 3.412382024977363 2005 3.2083394377820325 2006 3.115944298449342 2007 2.9763767556525647 2008 1.7271233456075905 2009 1.8182594071546616 2010 1.6727068479905638 2011 1.5480545017935343 2012 1.4196190140809395 2013 1.4189186133015925 2014 1.3812291139331025 2015 1.5049062057333586 2016 1.6916851058896607 2017 1.875585341290378 2018 1.7843077255322701 2019 1.9149519775634227 2020 2.034525570831556 2021 2.0627502256170036