Year	%
2000	0.9697529688181686
2001	0.9394260823483923
2002	0.9053690551463168
2003	0.871886941753236
2004	0.8339035619531489
2005	0.7920451615646735
2006	0.7645453883457319
2007	0.7205936919141851
2008	0.7049455029983044
2009	0.6486283435034205
2010	0.6377124439488425
2011	0.6096313130472286
2012	0.5711319344106396
2013	0.5529769747893267
2014	0.5287630250094586
2015	0.524515759728388
2016	0.5012071788663969
2017	0.4843137038211993
2018	0.4698971872994593
2019	0.4584337873244363
2020	0.44709192804048986