Year	%
1993	9.16
2000	8.85
2001	9.29
2002	9.29
2003	9.29
2007	8.92
2008	8.44
2009	8.86
2010	9.03
2013	8.72
2016	9.9
2017	9.76
2018	8.94
2019	8.74
2020	9.88
2021	9.88