Year	%
1993	7.9
1996	6.37
1997	6.3
1998	6.37
1999	6.4
2000	5.48
2001	6.22
2002	6.04
2003	6.45
2004	6.18
2005	6.36
2006	10.44
2007	10.28
2008	10.28
2009	9.19
2010	10.13
2011	8.77
2012	8.73
2013	8.04
2015	9.66
2016	8.29
2017	8.05
2019	9.65
2020	9.87
2021	10.13