Year	Percent
2000	89.62165
2001	89.63348
2002	89.64531
2003	89.65713
2004	89.66896
2005	90.25898
2006	90.84914
2007	91.43946
2008	92.02993
2009	92.62055
2010	93.21133
2011	93.80225
2012	94.39333
2013	94.98457
2014	95.57595
2015	96.16749
2016	96.75918
2017	97.35102
2018	97.94302
2019	98.53517
2020	99.12747
2021	99.71992
2022	99.71992