Year % of GDP 2006 20.232585536612866 2007 21.18275879694197 2008 21.788313629239013 2009 14.484777031950754 2010 15.979513718110471 2011 19.32184212207207 2012 22.538539394257096 2013 22.321740955846337 2014 21.308806983070852 2015 21.768615529741993 2016 20.23262908205395 2017 18.809983585980497 2018 14.787049743544825 2019 9.398878781971117 2020 9.789190169708686 2021 12.856083190441058 2022 12.58656435685889 2023 13.31839351841876