Year	Percent
2000	99.22699
2001	99.23151
2002	99.23257
2003	99.23365
2004	99.23471
2005	99.23464
2006	99.23462
2007	99.2355
2008	99.23608
2009	99.23636
2010	99.23635
2011	99.23589
2012	99.23432
2013	99.23269
2014	99.23098
2015	99.22922
2016	99.2274
2017	99.22554
2018	99.22363
2019	99.22165
2020	99.22181
2021	99.22199
2022	99.22218