Year	%
1996	49.61
1997	49.61
1999	49.61
2000	49.61
2001	49.61
2002	51.16
2003	49.38
2004	49.4
2005	49.38
2006	49.35
2007	49.17
2008	49.1
2009	49.12
2010	49.11
2011	51.45
2012	51.4
2013	51.38
2015	51.93
2016	51.93
2017	51.96
2018	51.96
2019	51.96
2020	51.96
2021	51.96