Year	%
1996	24.16
1999	23.91
2001	14.75
2002	14.76
2003	14.76
2006	14.75
2007	14.74
2008	14.74
2009	15.67
2010	15.67
2011	14.94
2012	14.94
2013	17.65
2014	17.65
2015	17.65
2016	17.65
2017	17.65
2018	17.72
2019	17.72
2020	19.88
2021	19.92