Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            78        57        8.384483   8.787935   8.574939   0.098759   8.567225  
2008            78        57        7.464968   7.800838   7.624058   0.077929   7.617516  
2009            78        57        8.575      8.914968   8.732062   0.079721   8.721193  
2010            78        57        6.402548   6.763258   6.560046   0.086576   6.54029   
2011            78        57        10.261839  10.553871  10.40247   0.071649   10.40671  
2012            78        57        8.625936   8.857742   8.724845   0.056082   8.718871  
2013            78        57        7.013064   7.393903   7.183299   0.088434   7.175419  
2014            78        57        7.597097   7.913774   7.75037    0.073964   7.743484  
2015            78        57        11.576645  11.836226  11.699897  0.061189   11.691    
2016            78        57        8.744613   9.015355   8.859618   0.065622   8.854194  
2017            78        57        8.881484   9.255645   9.050024   0.087694   9.035935  
2018            78        57        7.424549   7.730936   7.561743   0.071292   7.555677  
2019            78        57        8.599774   8.959806   8.769093   0.086787   8.768291  
2020            78        57        9.525968   9.931291   9.712823   0.098908   9.706549  
2021            78        57        9.396774   9.760161   9.592906   0.086072   9.606129  
2022            78        57        8.291903   8.612355   8.432422   0.074156   8.42829   
2023            78        57        8.4731     8.869534   8.653208   0.096114   8.641633