Year	%
1996	23.89
1998	23.89
1999	23.89
2000	23.89
2001	23.89
2003	67.15
2004	67.15
2005	67.15
2006	67.15
2007	68.1
2008	68.1
2009	68.1
2010	68.08
2011	68.08
2012	67.12
2013	67.12
2014	67.12
2015	22.29
2016	22.29
2017	22.59
2019	22.59
2021	22.59