Year % of GDP 2009 24.8549219693588 2010 28.4451645997959 2011 35.367887872035 2012 40.0600551046667 2013 42.380240486921 2014 48.9171731063841 2015 45.630782609944 2016 48.8756443742773 2017 51.5425858055791 2018 55.5020027333594 2019 60.1552379151791 2020 72.1929140858517 2021 61.6738125458808 2022 52.5539286020177 2023 55.3894516845918