Year	%
1995	8.72
1996	7.3
1997	6.81
1998	5.6
1999	5.73
2000	5.95
2001	6.28
2002	6.41
2003	6.74
2004	6.53
2005	7.37
2006	9.81
2007	6.87
2008	7.1
2009	6.44
2010	6.08
2011	6.07
2012	6.4
2013	6.14
2014	5.95
2015	5.99
2017	6.05
2018	6.15
2019	6.28
2020	5.77
2021	5.81