Year % of GNI 1993 5.892192816632873 1994 8.680705244917823 1995 12.128972078356172 1996 13.260372666080029 1997 14.75776222426429 1998 15.686348281875828 1999 22.249626359183694 2000 20.657269447230423 2001 22.73255641135187 2002 23.33721084149427 2003 21.173255777780554 2004 19.8998759713021 2005 17.512232284261614 2006 17.808987534229203 2007 27.919713481724834 2008 25.269804553728946 2009 44.37081300882566 2010 50.67329886106163 2011 55.554384180471786 2012 52.56631915136013 2013 54.30296383130454 2014 52.34070136070644 2015 70.76682314878991 2016 82.5010405969595 2017 75.15549155113713 2018 67.00098076206538 2019 65.17476605476067 2020 70.98476430162147 2021 62.06228320881346 2022 56.7857223981134