Year	Percent
2000	98.44373
2001	98.4982
2002	98.55268
2003	98.60715
2004	98.66162
2005	98.71609
2006	98.77056
2007	98.82504
2008	98.87951
2009	98.93398
2010	98.98845
2011	99.04292
2012	99.0974
2013	99.15187
2014	99.20634
2015	99.26081
2016	99.31528
2017	99.36976
2018	99.42423
2019	99.4787
2020	99.53317
2021	99.58765
2022	99.58765