Year	Percent
2000	98.67026
2001	98.70199
2002	98.73373
2003	98.76546
2004	98.7972
2005	98.82893
2006	98.86067
2007	98.89241
2008	98.92414
2009	98.95588
2010	98.98761
2011	99.01935
2012	99.05109
2013	99.08282
2014	99.11456
2015	99.14629
2016	99.17803
2017	99.20976
2018	99.2415
2019	99.27324
2020	99.30497
2021	99.33671
2022	99.36844