Year	Percent
2000	99.11295
2001	99.11313
2002	99.11503
2003	99.11692
2004	99.11882
2005	99.12072
2006	99.12261
2007	99.12451
2008	99.12641
2009	99.12831
2010	99.13021
2011	99.13211
2012	99.13387
2013	99.1355
2014	99.13663
2015	99.13695
2016	99.13726
2017	99.13755
2018	99.13735
2019	99.13713
2020	99.1369
2021	99.13664
2022	99.13636