Year % of GDP 2008 20.211725717135 2009 20.562137099759962 2010 20.265307705620952 2011 23.33422317416518 2012 18.25044717770664 2013 11.942403964406592 2014 13.866416240527007 2015 10.742679318185813 2016 9.052920655339495 2017 8.580682282362064 2018 11.638304710115047 2019 9.918133977634588 2020 9.043845499465302