Year	Percent
2000	98.41257
2001	98.34329
2002	98.27401
2003	98.20473
2004	98.13546
2005	97.99206
2006	97.81557
2007	97.63924
2008	97.46307
2009	97.28705
2010	97.11118
2011	96.93547
2012	96.75992
2013	96.58452
2014	96.40928
2015	96.23419
2016	96.05925
2017	95.88447
2018	95.70985
2019	95.53538
2020	95.36107
2021	95.36107
2022	95.36107