Year	%
2007	8.48
2008	8.48
2009	8.48
2010	8.49
2011	8.48
2012	8.57
2013	8.31
2014	8.56
2015	8.31
2016	8.31
2017	8.33
2018	8.33
2019	8.33
2020	8.33
2021	8.33