Year	% of GDP
2004	20.864226267715395
2005	20.51132702138031
2006	20.720993443505332
2007	20.621619533217423
2008	20.744537225042738
2009	20.79620504259044
2010	20.4950947550869
2011	20.73989196700063
2012	20.839116712047
2013	20.717043712961836
2014	20.915977059848725
2015	21.05245225675795
2016	20.721043558082894
2017	20.735988455902167
2018	21.064163344517045
2019	20.464647870895774
2020	20.789806000685086
2021	21.89095485538177
2022	21.309925696590366
2023	20.52767642500477