Year % of GDP 2007 60.583995625167816 2008 58.210593648421934 2009 61.3979202302409 2010 60.23452038395421 2011 60.00996552893062 2012 62.004087512091374 2013 62.39793057475548 2014 62.018581975685414 2015 62.37135719461355 2016 64.04521966469196 2017 68.86350536379864 2018 68.52025458380503 2019 66.94614912778442 2020 73.11547891584743 2021 75.41806519110528 2022 73.37292256331669 2023 74.66612754607472