Year % of GDP 2010 5.034993836894383 2011 2.937310174809819 2012 4.436072694437112 2013 3.2700173459965343 2014 4.383479664242813 2015 5.851767050800317 2016 5.979998829853029 2017 5.2699188281476905 2018 5.044516469962749 2019 3.9617175810099337 2020 7.319662429788049 2021 5.708986601832011 2022 4.572545726133763