Year	Percent
2005	99.15924
2006	99.15742
2007	99.15559
2008	99.15374
2009	99.1519
2010	98.42694
2011	97.69975
2012	96.96968
2013	96.23715
2014	95.50208
2015	94.76457
2016	94.02673
2017	93.28949
2018	92.55355
2019	91.81969
2020	91.08881
2021	90.36157
2022	90.36958