Year % of GNI 2006 0.3930845917417851 2007 0.3681691223230803 2008 0.5549779267940435 2009 0.22968576922519626 2010 0.6035242670481015 2011 0.6020897359072729 2012 0.32984226811961953 2013 0.1051457509315127 2014 0.1653785954537091 2015 0.1281827474575073 2016 0.1963911955373403 2017 0.361097053528274 2018 0.1143785067317874 2019 0.12529317304228618 2020 0.21269042045587117 2021 0.186951053343759