Year	%
1996	20.65
1999	17.23
2000	10.43
2001	8.86
2002	8.87
2003	8.86
2004	9.02
2005	9.02
2006	8.95
2007	8.95
2008	8.95
2009	9.02
2010	8.98
2011	8.98
2012	8.91
2013	9.1
2014	8.85
2015	8.86
2016	8.86
2017	8.86
2018	8.86
2019	8.86
2020	8.86
2021	8.86