Year	%
1995	9.72
1997	8.22
1998	8.24
1999	7.48
2000	6.96
2001	6.59
2002	5.91
2003	5.91
2004	5.26
2005	5.2
2006	5.19
2007	5.09
2008	5.08
2009	5.09
2010	5.08
2011	5.06
2012	4.99
2013	4.94
2014	4.9
2015	4.89
2020	4.89
2021	4.89