Year	%
1995	22.34
1996	22.7
1997	22.34
1998	22.34
1999	22.7
2000	22.7
2001	22.7
2002	22.21
2004	22.22
2005	22.22
2006	22.21
2007	20.44
2008	20.44
2009	20.44
2010	20.44
2011	20.44
2012	21.22
2013	21.22
2014	21.22
2015	21.22
2016	21.22
2017	21.39
2018	21.39
2019	21.38
2020	21.39
2021	21.39