Year	Percent
2000	100
2001	100
2002	100
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	100
2010	99.99833
2011	99.99178
2012	99.98524
2013	99.97869
2014	99.97215
2015	99.9656
2016	99.95906
2017	99.95251
2018	99.94597
2019	99.93942
2020	99.93288
2021	99.92633
2022	99.92633