Year	%
2000	6.6
2001	6.6
2002	6.6
2003	6.56
2004	6.56
2005	6.56
2006	6.56
2007	6.56
2008	6.56
2009	6.54
2010	6.54
2011	6.54
2012	6.23
2013	6.23
2014	6.23
2015	6.23
2016	6.23
2017	6.32
2018	6.32
2019	6.32
2020	6.32
2021	6.32