Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            178       62        16.556871  16.744741  16.641081  0.043743   16.636645 
2008            178       62        13.827839  14.186677  14.013144  0.076178   13.999629 
2009            178       62        14.525517  14.973774  14.758322  0.092818   14.744919 
2010            178       62        12.266129  12.613935  12.433751  0.075786   12.421113 
2011            178       62        14.995903  15.476452  15.258564  0.095339   15.25092  
2012            178       62        14.227549  14.645     14.448214  0.094565   14.449419 
2013            178       62        14.594129  14.978645  14.811522  0.088896   14.815661 
2014            178       62        13.63158   14.039839  13.834127  0.098251   13.824242 
2015            178       62        16.400614  16.682451  16.554823  0.063374   16.547919 
2016            178       62        14.261839  15.028935  14.754851  0.142273   14.76021  
2017            178       62        13.136904  13.649065  13.436351  0.10708    13.427774 
2018            178       62        12.667678  13.091097  12.916652  0.079481   12.906403 
2019            178       62        13.931581  14.451419  14.216399  0.106202   14.206726 
2020            178       62        13.38829   14.230129  13.946388  0.151457   13.955694 
2021            178       62        14.729322  15.49458   15.286872  0.140307   15.318468 
2022            178       62        13.403903  14.236807  13.933249  0.163148   13.947629 
2023            178       62        13.008433  13.639267  13.378676  0.138112   13.3876