Year	%
2006	5.7
2007	6.5
2008	6.9
2009	6.8
2010	6.3
2011	6.4
2012	6.2
2013	5.7
2014	6
2015	5.3
2016	5.4
2017	5.7
2018	5.7
2019	5.7
2020	6.1
2021	6.1