Year	%
1996	21.85
1999	21.68
2000	21.68
2001	12.18
2002	12.18
2003	12.18
2005	12.19
2006	12.18
2007	12.18
2010	13.93
2011	13.93
2012	14.54
2013	14.54
2014	13.2
2015	15.13
2016	15.13
2019	15.77
2020	15.37