Year % of GNI 1980 0.584185243038712 1981 0.3811698392008012 1982 0.3011964127941617 1983 0.3205441595453764 1984 0.3395025238832717 1985 0.36159238217137285 1986 0.1435083751833382 1987 0.13133864024149763 1988 0.06825186971790666 1989 0.08412881689210494 1990 1.0423957666217454 1991 0.9522271401427902 1992 0.8600559581073784 1993 2.6432291535840777 1994 4.923905686096985 1995 3.0977649269846563 1996 2.1249162558170958 1997 2.046428251962814 1998 1.1764639452579577 1999 1.9215786416486276 2000 3.809704805480983 2001 3.1167235627605 2002 3.2479595481963885 2003 3.187148638363802 2004 4.541622170810127 2005 6.884267765587094 2006 7.676109047905327 2007 7.822481423536123 2008 9.55401519075573 2009 4.316156138144094 2010 5.650808908369483 2011 6.819380469434583 2012 5.2955998549245615 2013 4.324367550601779 2014 3.3333769279971186 2015 1.5476686919022615 2016 1.2835162631660697 2017 1.841611898772944 2018 2.2972460907000145 2019 1.8704807319175758 2020 0.9910950681182931 2021 1.727188115267926