Year	Percent
2000	98.5087
2001	98.5644
2002	98.62009
2003	98.67579
2004	98.73149
2005	98.78718
2006	98.84288
2007	98.89858
2008	98.95427
2009	99.00997
2010	99.06567
2011	99.12136
2012	99.17706
2013	99.23276
2014	99.28845
2015	99.34415
2016	99.39985
2017	99.45554
2018	99.51124
2019	99.56694
2020	99.59637
2021	99.59637
2022	99.59637