Year % of GDP 2007 18.858931476430442 2008 18.13908256810884 2009 19.62708333597522 2010 19.789478169376988 2011 19.886188145187823 2012 18.515051145767742 2013 18.750965770899512 2014 19.792433171900548 2015 20.259234713259406 2016 19.831644519184504 2017 17.767535128466257 2018 18.12912335497444 2019 19.814467196561395 2020 25.729310475555955 2021 26.587632506022125 2022 21.12041514913605 2023 20.383774782616825