Year	Percent
2000	90.0389
2001	89.67806
2002	89.33506
2003	89.0204
2004	88.82007
2005	88.62561
2006	88.43711
2007	88.25455
2008	88.07781
2009	87.90689
2010	87.7419
2011	87.58269
2012	87.42938
2013	87.28168
2014	87.13986
2015	87.00375
2016	86.87499
2017	86.75321
2018	86.63891
2019	86.53208
2020	86.43306
2021	86.34159
2022	86.25802