Year	%
2006	5
2007	5.5
2008	5.8
2009	6
2010	5.7
2011	5.5
2012	5.3
2013	5
2014	4.9
2015	5.1
2016	5.6
2017	5.3
2018	5.4
2019	5.7
2020	5.6
2021	6