Year	Percent
2000	99.30294
2001	99.30254
2002	99.30215
2003	99.30176
2004	99.2395
2005	98.86547
2006	98.49234
2007	98.1201
2008	97.74875
2009	97.38018
2010	97.01419
2011	96.65021
2012	96.28833
2013	95.92847
2014	95.57068
2015	95.21488
2016	94.8621
2017	94.51245
2018	94.16623
2019	93.82369
2020	93.84385
2021	93.86514
2022	93.8875