Year	Percent
2000	99.92802
2001	99.92802
2002	99.92802
2003	99.92288
2004	99.91774
2005	99.9126
2006	99.90746
2007	99.90232
2008	99.89717
2009	99.89203
2010	99.88689
2011	99.88175
2012	99.87661
2013	99.87147
2014	99.86633
2015	99.86119
2016	99.85604
2017	99.8509
2018	99.84576
2019	99.84576
2020	99.84576
2021	99.84576
2022	99.84576