Year	Percent
2000	85.68
2001	85.7726
2002	85.86521
2003	85.95781
2004	86.05041
2005	86.40212
2006	86.75439
2007	87.10722
2008	87.4606
2009	87.81455
2010	88.16905
2011	88.5241
2012	88.87971
2013	89.23589
2014	89.59261
2015	89.9499
2016	90.30774
2017	90.66614
2018	91.02509
2019	91.38461
2020	91.74468
2021	92.1053
2022	92.46649