Year % of GNI 1980 30.153764936236602 1981 36.42397571638128 1982 35.20584546215772 1983 33.92446102567732 1984 35.406975640319736 1985 31.966781521066398 1986 32.331587734610515 1987 30.676108507345756 1988 33.29869729520003 1989 29.685166393463952 1990 15.917302768538681 1991 19.29631573767265 1992 13.03713792422547 1993 6.328119094494895 1994 8.682050223897347 1995 26.160059886406895 1996 10.288119078083398 1997 22.05015705456202 1998 25.674477546421173 1999 16.33396457260608 2000 13.821255289654324 2001 15.693988774486513 2002 17.616243079523734 2003 16.540889580405583 2004 16.78102339183516 2005 16.71013772674818 2006 15.3240230931775 2007 10.396767969467408 2008 15.535756520069391 2009 20.27663469573055 2010 21.632577629723617 2011 23.148660671850706 2012 22.572625514750488 2013 24.429938307909286 2014 23.587060331024134 2015 22.913851754723996 2016 24.639246169467942 2017 25.716995480879035 2018 24.497797208693562 2019 24.97803558420363 2020 21.18298215828874 2021 20.939852220031266 2022 22.68263975721729 2023 20.8202839477944