Year	Percent
2000	99.1
2001	99.1
2002	99.1
2003	99.1
2004	99.06981
2005	98.92606
2006	98.7823
2007	98.63855
2008	98.4948
2009	98.35104
2010	98.20729
2011	98.06354
2012	97.91978
2013	97.77603
2014	97.63228
2015	97.48852
2016	97.34477
2017	97.20102
2018	97.05726
2019	96.91351
2020	96.91351
2021	96.91351
2022	96.91351