Year	Percent
2000	98.14353
2001	98.19419
2002	98.22672
2003	98.2255
2004	97.76143
2005	97.29497
2006	96.825
2007	96.35198
2008	95.87591
2009	95.39684
2010	94.91676
2011	94.43525
2012	93.95228
2013	93.78815
2014	93.32207
2015	93.36159
2016	93.40063
2017	93.43929
2018	93.47633
2019	93.51158
2020	93.54499
2021	93.53464
2022	93.5898