Year	%
2000	20.24
2001	20.24
2002	20.23
2003	20.21
2004	20.21
2005	20.22
2006	20.22
2008	20.4
2009	20.4
2010	20.33
2011	20.36
2012	10.1
2013	10.1
2014	10.14
2015	12.95
2016	12.93
2017	12.98
2018	12.97
2019	13.24
2020	12.97
2021	11.44