Year	Percent
2000	99.48075
2001	99.49321
2002	99.50582
2003	99.51837
2004	99.53086
2005	99.54327
2006	99.55608
2007	99.56919
2008	99.58215
2009	99.59493
2010	99.60753
2011	99.62057
2012	99.63388
2013	99.64682
2014	99.65941
2015	99.67167
2016	99.68359
2017	99.69519
2018	99.70646
2019	99.71741
2020	99.72807
2021	99.73845
2022	99.73888