Year % of GDP 1960 38.91616543308296 2011 66.92222843956979 2012 65.60489953852995 2013 63.60418231549244 2014 62.167225899248635 2015 58.199817528352185 2016 55.5177848224411 2017 55.30718156668664 2018 57.57898411990285 2019 55.53977553116012 2020 52.38303411533963 2021 57.04248584955582 2022 61.04672992565222