Year	Percent
2000	87.33997
2001	87.57422
2002	87.80847
2003	88.04272
2004	88.27698
2005	88.51123
2006	88.74548
2007	88.97973
2008	89.21398
2009	89.44824
2010	89.68249
2011	89.91674
2012	90.15099
2013	90.38524
2014	90.61949
2015	90.85375
2016	91.088
2017	91.32225
2018	91.5565
2019	91.79075
2020	92.025
2021	92.08275
2022	92.08275