Year	Percent
2000	99.77299
2001	99.77299
2002	99.78135
2003	99.78971
2004	99.79807
2005	99.80643
2006	99.81479
2007	99.82315
2008	99.83151
2009	99.83987
2010	99.84823
2011	99.8566
2012	99.86496
2013	99.87332
2014	99.88168
2015	99.89004
2016	99.8984
2017	99.8999
2018	99.8999
2019	99.8999
2020	99.8999
2021	99.8999
2022	99.8999