Year	Percent
2000	98.60099
2001	98.60099
2002	98.61471
2003	98.62843
2004	98.64216
2005	98.65588
2006	98.6696
2007	98.68333
2008	98.69705
2009	98.71077
2010	98.7245
2011	98.73822
2012	98.75194
2013	98.76567
2014	98.77939
2015	98.79311
2016	98.80684
2017	98.82056
2018	98.83428
2019	98.84801
2020	98.86173
2021	98.87545
2022	98.88918