Year	Percent
2000	90.30507
2001	90.41988
2002	90.5347
2003	90.64951
2004	90.76433
2005	90.87914
2006	90.99396
2007	91.10877
2008	91.22359
2009	91.3384
2010	91.45321
2011	91.56803
2012	91.68284
2013	91.79766
2014	91.91247
2015	92.02729
2016	92.10429
2017	92.10514
2018	92.106
2019	92.106
2020	92.106
2021	92.106
2022	92.106