Year	Percent
2000	100
2001	100
2002	100
2003	99.99727
2004	99.99413
2005	99.991
2006	99.98786
2007	99.98473
2008	99.98159
2009	99.97845
2010	99.97532
2011	99.97218
2012	99.96905
2013	99.96591
2014	99.96278
2015	99.95964
2016	99.9565
2017	99.95337
2018	99.95337
2019	99.95337
2020	99.95337
2021	99.95337
2022	99.95337