Year	%
1995	4.09
1996	6.16
1997	6.09
1998	6.07
1999	6.08
2000	6.1
2001	6.32
2002	6.24
2003	6.24
2004	6.09
2005	6.27
2006	6.23
2007	6.16
2008	5.93
2009	5.9
2010	5.88
2011	5.83
2012	6.02
2013	5.92
2014	5.9
2015	4.39
2016	4.39
2017	4.39
2018	4.39
2019	4.39
2020	4.39
2021	4.39