Year	Percent
2000	99.7123
2001	99.71124
2002	99.71219
2003	99.73436
2004	99.75634
2005	99.77815
2006	99.79977
2007	99.82125
2008	99.84256
2009	99.86367
2010	99.88314
2011	99.89196
2012	99.90077
2013	99.90959
2014	99.96148
2015	99.97
2016	99.96997
2017	99.96994
2018	99.96989
2019	99.96985
2020	99.96982
2021	99.96977
2022	99.96973