Year	%
1999	4.08
2000	4.08
2001	4.08
2002	4.08
2004	3.36
2005	3.36
2006	3.36
2007	3.36
2008	1.89
2009	1.89
2010	1.89
2011	1.89
2012	1.69
2013	1.69
2014	1.69
2015	1.69
2016	1.69
2018	1.67
2019	1.67
2020	1.67
2021	1.67