Year % of GNI 2000 48.0554136813391 2001 17.5450639869731 2002 32.3347229473668 2003 28.8519074680264 2004 37.5128985319467 2005 46.2278749445857 2006 49.264953985907 2007 46.9674164478886 2008 45.7465270529109 2009 30.6304595516828 2010 40.923093287263 2011 41.4587533952508 2012 40.4951038207633 2013 34.4889428079832 2014 31.8047646939619 2015 26.1104425370296 2016 25.28568498671 2017 24.565710525555 2018 27.1933998810933 2019 35.285796926718 2020 33.2275783534669 2021 43.6582022767433