Year	Percent
2000	98.66303
2001	98.66226
2002	98.66149
2003	98.66073
2004	98.65997
2005	98.65923
2006	98.65848
2007	98.65774
2008	98.657
2009	98.65624
2010	98.65548
2011	98.65472
2012	98.65394
2013	98.65317
2014	98.65238
2015	98.6516
2016	98.6508
2017	98.65001
2018	98.64921
2019	98.64841
2020	98.64761
2021	98.6468
2022	98.646