Year	%
1996	52.09
1999	52.08
2001	52.08
2002	52.08
2003	52.08
2006	52.01
2007	52.01
2008	52.01
2009	51.91
2010	51.91
2011	51.91
2012	51.91
2013	51.94
2014	51.94
2015	51.94
2016	51.94
2017	51.94
2018	51.94
2019	51.94
2020	51.94
2021	51.94