Year	%
1996	2.98
1997	2.98
1999	2.63
2000	2.63
2001	2.63
2002	2.63
2003	2.19
2004	2.19
2005	2.19
2006	2.19
2007	1.5
2008	1.5
2009	1.5
2010	1.5
2011	1.5
2012	1.5
2013	1.5
2014	1.5
2015	1.3
2016	1.3
2017	1.32
2018	1.32
2019	1.32
2020	1.32
2021	1.32