Year % of GNI 2002 -16.787455644434 2003 -34.848740866221 2004 -6.77450537112134 2005 -6.15690818024998 2006 -5.52363556791173 2007 -0.267809514980575 2008 -7.13950501993098 2009 -7.48720298925569 2010 -11.2694280512665 2011 -15.6901524201512 2012 -21.0277362228579 2013 -20.2718096124415 2014 -21.692438119562 2015 -15.3491247558325 2016 -15.0044211421787 2017 -18.073006835768 2018 -22.2059124927889 2019 -25.9949791893022 2020 -19.6063672226851 2021 -27.381795968072