Year	% of GDP
2000	20.826526847491937
2001	20.73565041484206
2002	20.73536799532014
2003	19.825536501013353
2004	19.404464311873433
2005	20.68335838768944
2006	20.457458794139537
2007	19.661536888511044
2008	21.80381710399219
2009	24.35758699254339
2010	24.323996857304763
2011	25.692813418828546
2012	24.804387881210783
2013	23.790759536471672
2014	24.450017536020912
2015	24.151245467815606
2016	23.40695527194331
2017	24.731560263459286