Year % of GDP 1999 133.19174559411724 2000 154.515899500002 2001 155.8686437292239 2002 160.39640325554473 2003 154.22475490974358 2004 160.47220764290083 2005 169.32201303990894 2006 175.96146573496097 2007 178.90642619209652 2008 181.34468665172 2009 149.71189971448038 2010 165.93983110567336 2011 180.1185412897331 2012 178.3859442948869 2013 176.39954945644027 2014 172.93779373873875 2015 167.05852675620176 2016 163.32783608549292 2017 166.85041048061632 2018 169.96182325523245 2019 163.43420178912967 2020 155.84894894990688 2021 179.18805225751407 2022 215.30344349401247 2023 175.4468389822406