Year	%
1995	33.39
1996	30.84
1997	33.39
1998	33.39
1999	30.84
2000	30.84
2001	30.84
2002	28.06
2004	28.06
2005	28.06
2006	28.06
2007	26.92
2008	26.92
2009	26.92
2010	26.92
2011	26.92
2012	24.93
2013	24.93
2014	24.93
2015	24.93
2016	24.93
2017	25.38
2018	25.38
2019	25.38
2020	25.38
2021	25.38