Year	Percent
2000	82.04812
2001	82.50614
2002	82.96368
2003	83.42075
2004	83.87734
2005	84.33345
2006	84.78909
2007	85.24426
2008	85.69894
2009	86.15316
2010	86.60689
2011	87.06015
2012	87.51294
2013	87.96525
2014	88.41708
2015	88.86844
2016	89.31932
2017	89.76973
2018	90.21966
2019	90.66911
2020	90.66911
2021	90.66911
2022	90.66911