Year	%
1993	11.83
1996	11.13
1997	11.08
1998	11.13
1999	11.19
2000	11.61
2001	12.03
2002	11.6
2003	12.48
2004	11.31
2005	10.58
2006	10.78
2007	10.8
2008	10.64
2009	11.1
2010	11.03
2011	11.18
2012	11.41
2013	11.55
2015	11.18
2016	11.42
2017	11
2019	11.49
2020	12.23
2021	11.73