Year	Percent
2000	96.97933
2001	97.04558
2002	97.1141
2003	97.18097
2004	97.24569
2005	97.4573
2006	97.66039
2007	97.85507
2008	98.04188
2009	98.22094
2010	98.39293
2011	98.55795
2012	98.70838
2013	98.85258
2014	98.99356
2015	99.1314
2016	99.26625
2017	99.39807
2018	99.4786
2019	99.48724
2020	99.49576
2021	99.50424
2022	99.50798