Year	Percent
2000	97.71136
2001	97.70217
2002	97.69531
2003	97.68866
2004	97.68144
2005	97.67411
2006	97.66695
2007	97.65996
2008	97.65313
2009	97.6465
2010	97.64001
2011	97.63368
2012	97.62759
2013	97.62176
2014	97.61614
2015	97.61074
2016	97.60554
2017	97.60054
2018	97.59733
2019	97.59426
2020	97.59135
2021	97.58857
2022	97.58593