Year	%
1995	3.98
1996	4.19
1997	4.19
1998	4.19
1999	4.19
2000	4.21
2001	4.21
2002	4.23
2003	4.23
2004	4.24
2005	4.24
2006	4.24
2007	4.2
2008	4.19
2009	4.19
2010	4.19
2011	4.19
2012	4.17
2013	4.15
2014	4.15
2015	3.99
2016	3.99
2017	4
2018	4
2019	4
2020	4
2021	4