Year	%
1996	7.87
1997	12.29
1998	7.87
1999	7.87
2000	15.86
2001	8.11
2002	9.2
2003	8.91
2004	8.92
2005	8.56
2006	8.95
2007	8.13
2008	8.94
2010	6.58
2011	6.29
2012	6.2
2013	6.37
2015	7.71
2016	7.71
2017	8.33
2018	8.33
2020	7.97
2021	8.03