Year	%
2006	9.6
2007	10.3
2008	10.1
2009	10.3
2010	10
2011	9.8
2012	10.5
2013	9.7
2014	9.5
2015	8.9
2016	10
2017	9.4
2018	9.7
2019	9.6
2020	9.9