Year	%
1996	7.05
1997	7.05
1998	7.05
1999	7.05
2000	7.05
2001	6.82
2002	6.82
2003	6.82
2004	6.6
2005	7.21
2006	6.88
2007	6.55
2008	5.98
2010	5.14
2011	4.93
2012	7.54
2013	7.01
2015	3.35
2019	6.16
2021	4.7