Year	%
1999	68.43
2000	68.43
2001	68.43
2002	68.43
2004	68.3
2005	68.3
2006	68.3
2007	68.3
2008	78.45
2009	78.45
2010	78.45
2011	78.45
2012	75.79
2013	75.79
2014	75.79
2015	75.79
2016	75.79
2018	76.66
2019	76.66
2020	76.66
2021	76.66