Year	Percent
2000	99.35036
2001	99.35036
2002	99.35036
2003	99.35036
2004	99.35036
2005	99.31563
2006	99.2809
2007	99.24616
2008	99.21143
2009	99.1767
2010	99.14197
2011	99.10724
2012	99.07251
2013	99.03777
2014	99.00304
2015	98.96831
2016	98.93358
2017	98.89885
2018	98.86412
2019	98.82938
2020	98.79465
2021	98.75992
2022	98.75992