Year	%
2008	8.49660483267178
2009	7.74991935028793
2010	6.69884374235195
2011	7.57910664692136
2012	7.97137046755677
2013	7.41635746688502
2014	6.86384985813915
2015	6.33740826221559
2016	5.61605826300673
2017	5.19387817397176
2018	5.72640411911641
2019	5.76740721151145
2020	7.18670543745059
2021	7.51457650170697