Year % of GDP 2001 94.93470072962684 2002 99.31839456994764 2003 106.59943210855252 2004 116.01222660881486 2005 135.98333759275013 2006 156.76010611432494 2007 167.94797771164042 2008 171.18790562944497 2009 173.9768994027062 2010 172.01617586875844 2011 167.78323743164597 2012 158.15805195208245 2013 146.4526975722976 2014 130.1360245126902 2015 119.18964244238896 2016 111.45178657956605 2017 105.09009954477106 2018 98.53579198228364 2019 94.0528922620639 2020 106.58787678394295 2021 97.2575248099878 2022 87.91304367201757 2023 78.36436282098025