Year	%
2009	6.83049027589985
2010	5.20416391006098
2011	3.9675616131514
2012	5.43682266670985
2013	6.95249827882881
2014	6.7521584296
2015	6.5941684138
2016	7.18674576794876
2017	8.41730841915147
2018	7.0280449103203
2019	8.44660402666681