Year Percent of GDP 2009 12.747 2010 18.763 2011 17.398 2012 9.857 2013 9.209 2014 9.639 2015 10.133 2016 12.05 2017 12.455 2018 6.802 2019 4.72 2020 4.583 2021 4.493 2022 4.419 2023 4.343