Year	Percent
2000	99.99998
2001	99.99999
2002	100
2003	99.99838
2004	99.99653
2005	99.9947
2006	99.9929
2007	99.9911
2008	99.98933
2009	99.98757
2010	99.98583
2011	99.98411
2012	99.98231
2013	99.98045
2014	99.97859
2015	99.9767
2016	99.97481
2017	99.97291
2018	99.97281
2019	99.97271
2020	99.97261
2021	99.97249
2022	99.97237