Year	%
2001	13.25
2002	12.62
2003	12.33
2004	11.5
2005	12.01
2006	11.39
2007	9.99
2008	9.99
2009	9.99
2010	10.96
2011	10.62
2012	10.1
2013	11.22
2014	9.91
2015	8.89
2016	9.17
2017	9.44
2018	9.65
2019	11.27
2020	9.42
2021	9.28