Year	Percent
2000	88.1147
2001	88.35886
2002	88.60302
2003	88.84718
2004	88.38499
2005	87.91893
2006	87.44901
2007	86.97521
2008	86.49754
2009	86.01599
2010	85.53058
2011	85.04129
2012	84.54814
2013	84.05111
2014	84.27591
2015	84.50071
2016	84.72551
2017	84.95031
2018	85.17511
2019	85.39991
2020	85.39991
2021	85.39991
2022	85.39991