Year % of GDP 2002 53.74115968571406 2003 45.17596821830403 2004 43.46375812507128 2005 47.68918928225776 2006 52.85542407394759 2007 53.99158912139016 2008 46.02401182747789 2009 47.98262535823741 2010 50.85437419149743 2011 53.207532958932916 2012 56.48928944805086 2013 49.77709811358807 2014 52.90851537123042 2015 47.49340827670277 2016 46.43379714984126 2017 44.34880528931278 2018 46.96929022587582 2019 48.2977494392677 2020 48.287640129250484 2021 49.2031956067828 2022 52.716797706499186 2023 62.1746698596398