Year % of GNI 1989 26.4137084410681 1990 25.3287413335056 1991 21.7055465216863 1992 19.074951976093 1993 20.8856287784649 1994 22.3682516307498 1995 21.374201484521 1996 21.6675062814078 1997 22.5734049163369 1998 22.332545322703 1999 21.3093252054232 2000 21.8418227907022 2001 21.3601680419432 2002 22.3991613710373 2003 21.7040798093052 2004 22.1630260990617 2005 21.7991487249052 2006 22.5970682431163 2007 22.4020373958305 2008 22.8798053045545 2009 24.9280766294322 2010 22.7297146133962 2011 24.302403956939 2012 25.1348635703409 2013 24.5873345352804 2014 24.3022845828815 2015 23.1714004408527 2016 21.2207341067175 2017 22.4187176722598 2018 22.4450585278852 2019 23.1589945607936 2020 24.2228044285849 2021 26.0642391048845