Year	Percent
2006	87.71006
2007	88.14973
2008	88.59048
2009	89.0323
2010	89.47519
2011	89.91915
2012	90.36418
2013	90.81028
2014	91.25746
2015	91.7057
2016	92.15502
2017	92.60541
2018	93.05687
2019	93.5094
2020	93.91034
2021	93.91034
2022	93.91034