Year % of GNI 1990 1.37256832491289 1991 1.27110441674613 1992 1.19127386990974 1993 1.10016517981308 1994 1.00827340889751 1995 0.962308435862608 1996 0.917857980289584 1997 0.908765174155454 1998 1.07222757400696 1999 1.05544908658805 2000 0.974891412792983 2001 0.883667004500624 2002 0.815464175646578 2003 0.800601097664361 2004 0.795061990161487 2005 0.773696819561677 2006 0.7627542466199 2007 0.754821174359089 2008 0.739170377884648 2009 0.735999432930564 2010 0.709984840125233 2011 0.687817615858018 2012 0.673910767421256 2013 0.653889308729573 2014 0.637105213476407 2015 0.622862717740653 2016 0.587148544233897 2017 0.567542355164868 2018 0.554759518229547 2019 0.545808886103213 2020 0.560898641140736 2021 0.546057952578201