Year	%
1995	9.61
1996	6.67
1997	8.34
1998	7.21
1999	7.22
2000	7.01
2001	6.66
2002	5.52
2003	5.5
2004	5.53
2005	5.16
2006	5.14
2007	5.05
2008	5.04
2009	5.01
2010	5.01
2011	5.01
2012	4.94
2013	4.92
2015	4.92
2018	4.91
2020	4.91
2021	4.94