Year	Percent
2000	99.835
2001	99.835
2002	99.835
2003	99.845
2004	99.855
2005	99.865
2006	99.875
2007	99.885
2008	99.895
2009	99.905
2010	99.915
2011	99.925
2012	99.935
2013	99.945
2014	99.955
2015	99.965
2016	99.965
2017	99.965
2018	99.965
2019	99.965
2020	99.965
2021	99.965
2022	99.965