Year % of GDP 2007 62.62580319173073 2008 61.09438188903296 2009 61.49953039696398 2010 66.10314899803028 2011 67.37558758888876 2012 68.31324830935058 2013 72.1176005093897 2014 77.5294342112246 2015 76.39595453363955 2016 79.14194858786617 2017 80.72936339221664 2018 83.4974468773684 2019 85.50264329091036 2020 89.2735897596145 2021 99.16408667731696 2022 98.45791745713959 2023 85.79600943181438