Year	%
1995	10.05
1997	8.5
1998	8.2
1999	7.44
2000	7.09
2001	6.77
2002	6.2
2003	6.23
2004	5.72
2005	5.61
2006	5.61
2007	5.57
2008	5.56
2009	5.57
2010	5.56
2011	5.54
2012	5.69
2013	5.64
2014	5.6
2015	5.59
2020	5.59
2021	5.59