Year	Percent
2001	86.27372
2002	86.27372
2003	86.27372
2004	86.27372
2005	86.27372
2006	86.1677
2007	86.06167
2008	85.95565
2009	85.84963
2010	85.7436
2011	85.63758
2012	85.53156
2013	85.42553
2014	85.31951
2015	85.21348
2016	85.10746
2017	85.00144
2018	84.89541
2019	84.78939
2020	84.68337
2021	84.57734
2022	84.47132