Year Percent of GDP 2001 180.656 2002 158.815 2003 160.348 2004 151.598 2005 130.898 2006 103.229 2007 42.166 2008 42.374 2009 48.05 2010 46.849 2011 44.751 2012 36.765 2013 30.545 2014 34.965 2015 44.943 2016 55.457 2017 57.586 2018 71.307 2019 72.372 2020 71.973 2021 71.485 2022 69.21 2023 67.41 2024 65.656