Year	%
1995	4.58
1996	13.02
1997	12.72
1998	12.64
1999	12.66
2000	12.7
2001	13.72
2002	13.24
2003	13.24
2004	12.52
2005	13.31
2006	13.16
2007	12.86
2008	11.88
2009	11.71
2010	11.66
2011	11.45
2012	11.48
2013	11.14
2014	11.06
2015	5.75
2016	5.75