Year % of GNI 2004 0.3216879332203174 2005 0.24262138683167211 2006 0.3323580614978585 2007 0.2891945199269979 2008 0.2570213317274534 2009 0.2872123439634229 2010 0.6560735055226254 2011 0.8947777530747201 2012 0.754847968664969 2013 0.5530642260085835 2014 1.1299138938030677 2015 1.3197867114419155 2016 2.177411295734886 2017 2.1852226677460105 2018 2.753941535671944 2019 3.273789981097427 2020 3.1385247320781207 2021 5.3746866690413695