Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1819      1715      8.505234   9.2225     8.969899   0.179368   8.999766  
2008            1819      1715      8.668067   9.220533   8.96726    0.125971   8.986567  
2009            1819      1715      8.972967   10.047033  9.560283   0.187977   9.590466  
2010            1819      1715      9.1108     9.943767   9.542679   0.141274   9.551367  
2011            1819      1715      9.885567   10.386833  10.22252   0.12167    10.268066 
2012            1819      1715      10.1369    11.162733  10.719933  0.166078   10.752067 
2013            1819      1715      9.3181     10.099967  9.700352   0.149318   9.7049    
2014            1819      1715      9.496333   10.711333  10.057338  0.196378   10.057333 
2015            1819      1715      9.344967   10.467033  10.02035   0.234242   10.050433 
2016            1819      1715      9.727734   11.070933  10.50825   0.218812   10.516    
2017            1819      1715      10.015467  11.1021    10.745516  0.209387   10.768567 
2018            1819      1715      8.105467   9.378966   8.816672   0.253724   8.8627    
2019            1819      1715      9.439366   10.4799    10.011202  0.198544   10.042733 
2020            1819      1715      9.3667     10.2871    9.942682   0.18414    9.980967  
2021            1819      1715      9.907267   11.614133  10.914601  0.31045    10.975634 
2022            1819      1715      10.427483  11.508827  11.121509  0.218593   11.165483 
2023            1819      1715      9.6279     10.308467  10.046726  0.174196   10.073466