Year Percent of GDP 2000 62.254 2001 39.28 2002 33.842 2003 35.938 2004 35.523 2005 70.478 2006 49.724 2007 164.054 2008 44.095 2009 32.68 2010 38.236 2011 39.682 2012 34.992 2013 33.446 2014 25.116 2015 28.199 2016 27.629 2017 23.829 2018 22.649 2019 20.655 2020 20.557 2021 20.243 2022 19.98 2023 20.091 2024 20.306