Year	%
2005	10.0181902860592
2006	10.2393523448149
2007	10.2540245906716
2008	10.5496437737182
2009	11.9485636678017
2010	10.2993783970849
2011	10.0825402305763
2012	10.1489827569519
2013	10.1473836254435
2014	9.46499496848915
2015	7.68972560551196
2016	8.38895653975315
2017	8.78183018265545
2018	9.10768394993379
2019	9.55200184714006
2020	8.663816526097
2021	8.76978986838747
2022	8.47263101460525