Year	%
1999	11.87
2001	11.79
2002	12.46
2003	10.22
2004	9.66
2005	9.05
2006	9.12
2007	4.05
2008	4.03
2009	4.03
2010	4.03
2011	4.03
2012	4.05
2013	3.84
2015	3.84
2016	3.84
2020	3.63
2021	3.95