Year % of GNI 1990 1.4420700006758411 1991 1.8427326278740517 1992 1.1247833357403765 1993 1.162087306080081 1994 1.2214259776541925 1995 1.0815074212658409 1996 0.9038430606637067 1997 0.8817880860729433 1998 0.8693964481173303 1999 0.8337059498946556 2000 0.6703331590343904 2001 0.6704246153225523 2002 0.6523347193782527 2003 0.6142011122582202 2004 0.5638316681667314 2005 0.5360061209636605 2006 0.5038183865286475 2007 0.5260244228936725 2008 0.4571249771401213 2009 0.5158095967974942 2010 0.49837922332782614 2011 0.430923115437095 2012 0.40843297970154385 2013 0.4307554244326364 2014 0.4236075850298363 2015 0.45092798121766786 2016 0.42925897439667643 2017 0.4078947873299581 2018 0.38931187486782676 2019 0.39361951025657277 2020 0.44468861897657647