Year	% of GDP
2004	22.981490322740047
2005	22.439354690793355
2006	22.1850322833876
2007	22.112938716201377
2008	22.017315040569272
2009	22.523508421217763
2010	22.339516876480786
2011	22.20266285043092
2012	22.172160150839467
2013	21.965156808183508
2014	22.405038200903196
2015	23.259964734891263
2016	22.83968069695737
2017	22.680381345441884
2018	22.847920825422843
2019	22.237623894392815
2020	22.594690919375644
2021	23.624979202861375
2022	23.050426259084148
2023	22.195338064395294