Year	Percent
2000	96.64211
2001	96.89228
2002	97.03215
2003	97.17144
2004	97.31017
2005	97.44833
2006	97.58592
2007	97.72294
2008	97.8594
2009	97.99529
2010	98.1306
2011	98.26535
2012	98.39954
2013	98.45409
2014	98.34075
2015	98.22741
2016	98.11407
2017	98.00073
2018	98.00073
2019	98.00073
2020	98.00073
2021	98.00073
2022	98.00073