Year	% of GDP
2004	24.201236285838164
2005	20.293286576731667
2006	19.497227712787772
2007	21.43636841493067
2008	21.60671315105462
2009	22.150938718186495
2010	23.188554484256578
2011	23.28531275377904
2012	22.754035513778295
2013	23.604114760943453
2014	25.40170495824104
2015	27.154044394094363
2016	28.113231255202987
2017	28.870581788080337
2018	28.507962549930642
2019	28.998986870829253
2020	31.110592495179628
2021	28.07585248338619
2022	28.047467523927732
2023	30.675664869297158