Year Percent of GDP 2001 54.89 2002 109.579 2003 111.546 2004 93.547 2005 83.919 2006 75.697 2007 67.985 2008 59.789 2009 63.099 2010 59.412 2011 58.096 2012 58.01 2013 60.184 2014 61.418 2015 64.629 2016 61.575 2017 65.713 2018 69.99 2019 71.344 2020 71.034 2021 71.241 2022 71.524 2023 71.622 2024 71.275