Year % of GNI 2002 41.881672612684504 2003 45.394554450085266 2004 52.040766755958295 2005 52.86880618158019 2006 54.35857003892687 2007 59.47041133988175 2008 52.454372791416155 2009 51.613013753782724 2010 59.14532303289335 2011 63.26467413578601 2012 63.5404857815672 2013 64.33166717552825 2014 62.49135878440851 2015 54.48912766750964 2016 53.639096451489934 2017 56.575819971764595 2018 56.85084913648693 2019 54.093438504241064 2020 34.09534359534733 2021 31.591653833580303 2022 30.88810868258153