Year	Percent
2000	87.59058
2001	87.64521
2002	87.69983
2003	88.33728
2004	88.96894
2005	89.59444
2006	89.94934
2007	90.29462
2008	90.63914
2009	90.9745
2010	91.29852
2011	91.6111
2012	91.91244
2013	92.20237
2014	92.48116
2015	92.74887
2016	93.00551
2017	93.25117
2018	93.48596
2019	93.70994
2020	93.62156
2021	93.33286
2022	93.04374