Year	% of GDP
2003	7.649533529400308
2004	6.737065767902772
2005	6.571652648943937
2006	9.050661988890282
2007	7.9356266279098255
2008	6.883452243597291
2009	7.917244226855812
2010	9.993607046455462
2011	9.457330992707517
2012	11.717659511130222
2013	9.58519844822441
2014	12.455018494138297
2015	16.08857010312957
2016	20.189094421001226
2017	20.792505138377706
2018	20.873648042868766
2019	21.16365855610693
2020	20.98399996033458
2021	19.056818014245057