Year % of GNI 2006 0.289443004021456 2007 0.260464514503404 2008 0.241558879761029 2009 0.174956269916473 2010 0.384685814022503 2011 0.29558964088947 2012 0.130937709585756 2013 0 2014 0 2015 0 2016 0 2017 0 2018 0.0171581498514974 2019 0.0606873588623134 2020 0.174089413197908 2021 0.134664038098015