Year	%
2009	17.725069469086378
2010	7.494362228566915
2011	7.028193084208777
2012	8.829166775249076
2013	11.426522725192827
2014	8.87148961121219
2015	7.665564921061948
2016	6.615990449319852
2017	6.364675068038049
2018	5.079008840744541