Year % of GNI 1990 0.208159283114741 1991 0.176851170710683 1992 0.229429243308351 1993 0.181963608304531 1994 0.262340530270841 1995 0.215780731800434 1996 0.666917811460183 1997 0.91712014449771 1998 0.848349428358104 1999 0.649004622709295 2000 0.751419353779626 2001 0.924734174405854 2002 1.05454345640027 2003 0.965367561264253 2004 0.950162913595679 2005 1.03012610115615 2006 1.21500719443563 2007 1.26855087060004 2008 1.10355469134142 2009 1.25773289636536 2010 1.45576545984243 2011 1.29897550469732 2012 1.24564973139023 2013 1.21523725105467 2014 1.32154090780121 2015 1.69621373802664 2016 2.06551909418634 2017 2.04638862066076 2018 2.06087447858488 2019 2.08928910434415 2020 2.09710540527969 2021 2.1432897948425