Year	%
1996	21.59
1999	19.12
2000	10.74
2001	9.64
2002	9.64
2003	9.64
2004	9.75
2005	9.75
2006	9.69
2007	9.69
2008	9.69
2009	9.75
2010	10.35
2011	10.35
2012	10.49
2013	10.02
2014	9.9
2015	9.91
2016	9.91
2017	9.91
2018	9.91
2019	9.91
2020	9.91
2021	9.91