Year	%
1995	11.06
1996	9.5
1997	8.91
1998	9.25
1999	7.41
2000	7.63
2001	8.06
2002	7.4
2003	7.91
2004	8.02
2005	7.9
2006	7.83
2007	8.2
2008	8.35
2009	8.35
2010	8.33
2011	8.32
2012	8.74
2013	8.73
2014	8.72
2015	8.71
2017	8.73
2018	8.73
2019	8.82
2020	8.82
2021	8.82