Year % of GDP 1994 156.99363415749306 1995 156.55537955403923 1996 157.69591740966683 1997 155.66785467312093 1998 152.5984561679532 1999 160.70893425735156 2000 146.61999258160236 2001 151.5098533856183 2002 149.45160020248608 2003 150.73336693548387 2004 152.2213291042993 2005 154.17991688940046 2006 152.43161378381916 2007 152.39610021149647 2008 144.74447362661414 2009 143.57074835821265 2010 138.8937664618086 2011 133.72399674596153 2012 133.87421775171194 2013 135.61244497058934 2014 136.89285688756726 2015 138.47442100140276 2016 136.63780232905344 2017 137.000248015873 2018 139.20659105710038 2019 137.50663904047627 2020 136.45125775027847 2021 137.76078193163622 2022 146.86180897967702 2023 148.10045814339833