Year	%
1997	14.73
2001	14.64
2002	14.29
2003	14.29
2005	14.29
2006	14.29
2007	14.29
2008	13.76
2009	13.76
2010	13.76
2011	13.76
2012	13.76
2014	13.76
2016	13.76
2018	14.93
2020	14.92
2021	14.92