Year	%
2000	0.485225360011071
2001	0.556471355138694
2002	0.472926166678415
2003	0.469676553832619
2004	0.471605441226786
2005	0.460489178963145
2006	0.455496254871215
2007	0.439361931582015
2008	0.365658726158595
2009	0.361521252928551
2010	0.360226650880477
2011	0.369032237825617
2012	0.355998398178004
2013	0.354810604526773
2014	0.275983150178541
2015	0.272192484872766
2016	0.266989028705369
2017	0.260270528504265
2018	0.254720609175455
2019	0.249960738605864
2020	0.242392089582353