Year	%
2009	15.8517802526817
2010	15.7151866239762
2011	15.578144297994
2012	12.4208760231702
2013	10.6509164310285
2014	10.9775049331323
2015	13.0613667246001
2016	12.9683830563482
2017	12.8284153963309
2018	12.872702613354
2019	12.5585345181765
2020	12.8766778199827
2021	12.3733032241753
2022	13.5431682357368