Year % of GNI 1994 26.025336151566023 1995 41.055238070798325 1996 37.962295635127354 1997 33.814601231461445 1998 33.89177532523989 1999 30.445672525601708 2000 7.3163441868020715 2001 18.745054116347948 2002 18.933571116576104 2003 29.73250393584486 2004 23.925434493546174 2005 22.706931534673934 2006 20.199380343215488 2007 24.199496437648822 2008 26.601538124415757 2009 26.766195945586546 2010 22.90312242481471 2011 25.281163048471818 2012 24.90583274119472 2013 25.12412811908561 2014 24.352163346354864 2015 20.629338104006123 2016 20.151138655110415 2017 19.172806470924584 2018 16.810107886927646 2019 10.400905694036837 2020 15.099939790057329 2021 33.09403222558912