Year % of GDP 2007 115.17127403901874 2008 112.83614503550608 2009 117.15177082761836 2010 123.74887279502913 2011 136.8772422200618 2012 142.87942063379325 2013 147.56606878223712 2014 151.8785814528117 2015 154.24830097951977 2016 152.19827866564358 2017 150.94393340526142 2018 150.22613914741112 2019 149.85178431979503 2020 166.89197848992015 2021 170.24302682034303 2022 163.68242745553218 2023 161.4121477867921