Year	%
1992	5.83
1995	11.92
1996	11.3
1997	11.62
1998	13.63
1999	13.75
2000	14.44
2001	14.2
2002	12.8
2004	12.52
2005	10.6
2006	9.88
2007	9.76
2008	9.34
2009	10.12
2010	10.66
2011	10.87
2012	10.86
2013	10.54
2014	10.53
2015	10.1
2016	10.32
2017	12.06
2018	11.58
2019	11.55
2020	11.23
2021	11.17