Year	%
2000	20.31
2001	20.31
2002	20.32
2003	20.3
2004	20.33
2005	20.3
2006	20.3
2008	20.6
2009	20.6
2010	20.51
2011	20.55
2012	10.95
2013	10.95
2014	10.95
2015	14.42
2016	14.38
2017	14.4
2018	14.4
2019	14.38
2020	14.38
2021	12.42