Year	Percent
2000	99.07043
2001	99.07217
2002	99.0739
2003	99.07563
2004	99.07736
2005	99.0791
2006	99.08083
2007	99.08256
2008	99.08429
2009	99.08602
2010	99.08776
2011	99.08949
2012	99.09122
2013	99.09295
2014	99.09469
2015	99.09642
2016	99.09815
2017	99.09988
2018	99.10161
2019	99.10335
2020	99.10508
2021	99.10681
2022	99.10854