Year % of GNI 2005 -32.8709517858062 2006 -33.7260312342684 2007 -34.2110268014908 2008 -25.3313534394963 2009 -20.7126482817549 2010 -18.6490315989471 2011 -22.977233196826 2012 -16.4419948083581 2013 -13.5472042701615 2014 24.0743389672978 2015 22.301134456738 2016 19.2056476277488 2017 16.0947774471097 2018 14.6082911321733 2019 15.9014302830286 2020 20.056665374705