Year	%
2001	15.97
2002	15.99
2003	15.99
2005	14.35
2006	14.35
2007	14.35
2008	14.35
2010	12.1
2011	12.05
2012	12.05
2014	13.04
2016	13.06
2020	10.52
2021	11.74