Year	%
1997	8.75
1998	8.75
1999	5
2000	5
2001	5
2002	5
2003	5
2004	18
2005	18
2006	18
2007	18
2008	6
2009	10
2010	10
2011	10
2012	10
2013	12.1212121212121
2014	24
2015	24
2016	24
2018	20
2019	21
2020	21
2021	23
2022	31
2023	31