Year	Percent
2000	98.35338
2001	98.38756
2002	98.42173
2003	98.45591
2004	98.49009
2005	98.52427
2006	98.55845
2007	98.59262
2008	98.6268
2009	98.66098
2010	98.69516
2011	98.72933
2012	98.76351
2013	98.79769
2014	98.83187
2015	98.86605
2016	98.90022
2017	98.9344
2018	98.96858
2019	99.00276
2020	99.03693
2021	99.07111
2022	99.10529