Year % of GNI 1990 113.23745598494406 1991 112.92524545354676 1992 104.11176897298999 1993 112.85958921691967 1994 150.51919426961962 1995 153.44310157218115 1996 121.25503072503199 1997 62.92532513410048 1998 96.82900566946108 1999 73.89512667240209 2000 58.03066731460548 2001 56.56871851121675 2002 53.90131893205009 2003 50.97601307877508 2004 44.73470286275985 2005 36.19911904007659 2006 32.050028430110146 2007 30.321741959922388 2008 24.918998604623148 2009 28.379455240804734 2010 22.361446127460447 2011 21.156038684971143 2012 22.422311909064067 2013 19.919589880596508 2014 19.01896445131345 2015 17.75922295297398 2016 22.59851270043812 2017 26.83809164245882 2018 32.59219680823348