Year	%
2009	8.0139152096676
2010	8.51836042547271
2011	9.07525458624715
2012	9.97438974459132
2013	9.1551358602105
2014	8.38610218643157
2015	8.38550540100489
2016	8.34203634271391
2017	8.70217360858571
2018	9.29799940252323
2019	9.51804257779994
2020	9.72920278255682
2021	9.66897962590551