Year	%
2004	32.41
2005	32.41
2006	32.41
2007	32.32
2008	32.32
2009	32.32
2010	32.32
2011	32.32
2012	32.32
2013	32.62
2014	32.62
2015	32.62
2016	32.62
2018	32.88
2019	32.88
2020	32.88
2021	32.88