Year	%
1996	81.49
1999	81.89
2001	81.89
2002	81.89
2003	81.89
2006	81.63
2007	81.63
2008	81.63
2009	81.63
2010	81.63
2011	81.63
2012	81.63
2013	83.48
2014	83.48
2015	83.48
2016	83.48
2017	83.48
2018	83.5
2019	83.5
2020	83.5
2021	83.5