Year % of GDP 2008 34.82878693440406 2009 32.91676964878961 2010 32.08992315585837 2011 33.1327540054642 2012 35.8042065403385 2013 40.132683593552066 2014 45.18458568271042 2015 48.43028303198709 2016 54.176797182350015 2017 55.34262943649493 2018 59.580606563475115 2019 65.22621161099124 2020 79.4208401272277 2021 73.16165770808873 2022 63.272833029660035 2023 66.69500748398673