Year	Percent
2000	91.13773
2001	91.42402
2002	91.71047
2003	91.9971
2004	92.2839
2005	92.57086
2006	92.858
2007	93.14531
2008	93.43278
2009	93.72043
2010	94.00824
2011	94.29623
2012	94.58438
2013	94.87271
2014	95.16121
2015	95.44987
2016	95.73871
2017	96.02771
2018	96.31689
2019	96.60623
2020	96.89575
2021	97.18543
2022	97.47529