Year	%
1997	41.26
2000	41.26
2001	41.26
2002	41.21
2003	41.21
2005	41.21
2006	41.21
2007	41.21
2008	41.21
2009	41.21
2010	41.21
2011	41.21
2012	41.21
2014	41.21
2015	41.3
2016	41.3
2017	41.33
2019	41.33
2020	41.33
2021	41.33