Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            289       144       15.103387  16.054451  15.686819  0.229398   15.736984 
2008            289       144       13.371581  14.479258  14.025207  0.26773    14.059274 
2009            289       144       12.610387  13.536225  13.158946  0.228053   13.206887 
2010            289       144       9.627935   11.154097  10.538717  0.375209   10.619129 
2011            289       144       10.772258  11.951516  11.476268  0.288888   11.539355 
2012            289       144       12.582226  13.505581  13.104839  0.23717    13.113129 
2013            289       144       14.062742  15.35029   14.831946  0.31514    14.893597 
2014            289       144       10.361096  11.702291  11.139874  0.333554   11.184678 
2015            289       144       11.925775  13.248322  12.717617  0.324675   12.779952 
2016            289       144       13.188129  14.253581  13.817862  0.261413   13.873452 
2017            289       144       12.213161  13.532548  12.960986  0.338542   12.969629 
2018            289       144       10.424032  11.809226  11.24255   0.33593    11.285597 
2019            289       144       12.229     13.13929   12.785747  0.225062   12.847291 
2020            289       144       12.542807  13.589129  13.187897  0.264578   13.256048 
2021            289       144       11.208967  12.039549  11.705905  0.223518   11.716484 
2022            289       144       11.424613  12.453677  12.043751  0.279344   12.058565 
2023            289       144       11.036742  12.367871  11.843543  0.341752   11.906613