Year	%
2004	7
2005	5.9
2006	6.6
2007	7.4
2008	7.8
2009	7.2
2010	7.2
2011	7.2
2012	8.4
2013	8
2014	9.7
2015	10.1
2016	8.3
2017	8.5
2018	7.5
2019	7.7
2020	7.1
2021	7.9