Year	Percent
2000	99.64586
2001	99.64445
2002	99.64305
2003	99.64164
2004	99.64023
2005	99.63883
2006	99.63742
2007	99.63602
2008	99.63461
2009	99.6332
2010	99.6318
2011	99.63039
2012	99.62899
2013	99.62758
2014	99.62617
2015	99.62477
2016	99.62336
2017	99.62196
2018	99.62055
2019	99.61914
2020	99.61774
2021	99.61633
2022	99.61493