Year	Percent
2000	99.11168
2001	99.11168
2002	99.11168
2003	99.11168
2004	99.11168
2005	99.11168
2006	99.11168
2007	99.05831
2008	99.00494
2009	98.95157
2010	98.8982
2011	98.84484
2012	98.79147
2013	98.7381
2014	98.68473
2015	98.63136
2016	98.578
2017	98.52463
2018	98.47126
2019	98.41789
2020	98.36453
2021	98.31116
2022	98.31116