Year % of GDP 2009 9.73923436603363 2010 9.903353023952388 2011 10.221266540502484 2012 10.310032451051587 2013 10.22785614697853 2014 10.482180587278965 2015 10.73323210371128 2016 10.424140472289032 2017 10.672681959336806 2018 10.655347525046947 2019 11.031283825582298 2020 10.546115088397649 2021 10.77324716072599