Year	%
2006	9.33554544322143
2007	9.53357849510794
2008	10.6359148265941
2009	10.8261703363545
2010	10.5600928900933
2011	10.5068171039379
2012	10.7819863157659
2013	10.6222578894955
2014	10.8509344431924
2015	7.63910596205416
2016	10.3778463182606
2017	11.0076637969775
2018	11.1033165860794
2019	11.2225480766743
2020	10.4949073316459
2021	10.3954800150839