Year	%
1995	10.06
1996	8.81
1997	8.09
1998	5.19
1999	7.06
2000	7.12
2001	7.22
2002	6.89
2003	7.26
2004	7.29
2005	5.9
2006	7.22
2007	5.86
2008	5.89
2009	5.87
2010	5.88
2011	5.88
2012	6.02
2013	6.02
2014	6.01
2015	5.99
2017	5.99
2018	5.99
2019	6.02
2020	6.02
2021	6.02