Year	Percent
2000	99.90292
2001	99.90292
2002	99.90292
2003	99.90292
2004	99.90292
2005	99.90292
2006	99.90292
2007	99.90292
2008	99.90292
2009	99.90907
2010	99.91522
2011	99.92136
2012	99.92751
2013	99.93366
2014	99.9398
2015	99.94595
2016	99.95209
2017	99.95824
2018	99.96439
2019	99.97053
2020	99.97668
2021	99.98283
2022	99.98897