Year	% of GDP
2001	18.711641761249464
2002	20.029026646473742
2003	22.020375678114565
2004	23.479311024659427
2005	22.745788992070803
2006	15.28834667663832
2007	17.86514414539147
2008	20.546094752314207
2009	18.02795239096605
2010	20.157504288124336
2011	21.140926046155407
2012	26.88391784781863
2013	19.281134781880333
2014	18.203508607632944
2015	17.36429964587346
2016	18.289585362215067
2017	17.35524030518705
2018	17.601847515248366
2019	17.510945094103317
2020	21.88355440570281
2021	20.750874871255746
2022	22.678992950766652