Year	Percent
2000	98.74762
2001	98.74762
2002	98.65743
2003	98.5672
2004	98.47693
2005	98.38661
2006	98.29625
2007	98.20585
2008	98.11541
2009	98.02492
2010	97.93439
2011	97.84382
2012	97.75321
2013	97.66255
2014	97.57185
2015	97.59093
2016	97.61001
2017	97.62909
2018	97.62909
2019	97.62909
2020	97.62909
2021	97.62909