Year	Percent
2006	96.00295
2007	96.23909
2008	96.4754
2009	96.7119
2010	96.94858
2011	97.18543
2012	97.42247
2013	97.65969
2014	97.8971
2015	98.13468
2016	98.37244
2017	98.61039
2018	98.80889
2019	99.00031
2020	99.19174
2021	99.19174
2022	99.19174