Year	% of GDP
2001	59.12950009488366
2002	61.37269566079841
2003	58.573870652692804
2004	60.7617941000396
2005	56.34278856898038
2006	56.026759549503936
2007	60.09777716779085
2008	58.382848601828776
2009	52.28760709944801
2010	40.77689097136931
2011	37.31613792724448
2012	31.30381227432366
2013	33.08056830045622
2014	35.309692920954554
2015	34.25146800461833
2016	34.998525005179424
2017	36.83773092950682
2018	37.868213014162606
2019	39.19211133486461
2020	40.17069301872108