Year % of GNI 2005 9.98714096190632 2006 12.06296098437942 2007 13.720743340685583 2008 14.415618674622436 2009 12.024780595985481 2010 12.593215221511496 2011 13.109555507795026 2012 10.510168891206614 2013 10.956279748187496 2014 9.48094066434481 2015 11.946389204904662 2016 6.893932837096245 2017 10.798960977123953 2018 13.850131605564826 2019 19.989773769075992 2020 13.832925866589083 2021 12.797215063827359 2022 6.680684184247442