Year	Percent
2000	100
2001	100
2002	100
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	100
2010	100
2011	100
2012	99.98617
2013	99.95664
2014	99.92694
2015	99.92673
2016	99.9265
2017	99.92628
2018	99.92606
2019	99.92584
2020	99.92561
2021	99.92538
2022	99.92516