Year	% of GDP
2004	23.6407582982231
2005	19.6494366342449
2006	18.6926214053015
2007	20.7082666024064
2008	20.726679618243
2009	21.5497953498639
2010	22.7101349836385
2011	22.9052179850353
2012	22.4928773646523
2013	23.3897511109954
2014	25.2038732295267
2015	25.9668074857324
2016	26.8524647811727
2017	27.262878693965
2018	27.2116550681332
2019	28.1624931377834
2020	30.511874998269
2021	27.9489766167918
2022	27.9508638700304
2023	30.5382600017364