Year	Percent
2000	99.07343
2001	99.0771
2002	99.08077
2003	99.08443
2004	99.0881
2005	99.09177
2006	99.09543
2007	99.0991
2008	99.10277
2009	99.10643
2010	99.1101
2011	99.11377
2012	99.11744
2013	99.1211
2014	99.12477
2015	99.12844
2016	99.1321
2017	99.13577
2018	99.13944
2019	99.14311
2020	99.14677
2021	99.14677
2022	99.14677