Year	%
1993	9.16
2000	8.85
2001	9.29
2002	9.29
2003	9.29
2007	8.93
2008	8.44
2009	8.87
2010	9.03
2013	8.75
2016	10.13
2017	10.04
2018	9.25
2019	9.02
2020	10.17
2021	10.17