Year	%
1982	9.2
1992	10
2000	9.2
2002	9.5
2006	11.2
2007	11.3
2008	11.3
2009	10
2010	11
2011	10.4
2012	9.5
2013	10
2014	10.4
2015	10.9
2016	11.1
2017	10.9
2018	11.2
2019	11.1
2020	10.4