Year	%
1995	6.11
1996	6.17
1997	6.5
1998	6.2
2000	5.75
2001	5.82
2002	6.2
2003	6.07
2004	5.86
2005	16.64
2006	14.54
2007	13.99
2008	13.92
2009	13.14
2010	12.82
2011	13.05
2012	13.22
2013	13.59
2014	13.08
2015	14.32
2016	13.63
2017	8.17
2018	13
2019	11.49
2020	11.23
2021	12.49