Year	%
1994	13.53
2000	6.01
2001	6.09
2002	5.98
2003	5.53
2004	5.32
2005	8.98
2006	7.71
2007	8.44
2008	8.75
2009	9.22
2010	9.18
2011	8.44
2012	8.9
2013	8.5
2014	8.64
2015	7.88
2016	7.33
2018	8.01
2019	8.05
2020	8.09
2021	8.67