Year	Percent
2000	99.4
2001	99.4246
2002	99.4492
2003	99.4738
2004	99.4984
2005	99.523
2006	99.5476
2007	99.5722
2008	99.5968
2009	99.6214
2010	99.646
2011	99.6706
2012	99.6952
2013	99.6952
2014	99.6952
2015	99.6952
2016	99.6952
2017	99.6952
2018	99.6952
2019	99.6952
2020	99.6952
2021	99.6952
2022	99.6952