Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            81        57        7.569549   8.019451   7.80294    0.109614   7.802097  
2008            81        57        6.949484   7.366032   7.162418   0.105885   7.156     
2009            81        57        8.147613   8.535968   8.348573   0.095702   8.343129  
2010            81        57        6.388032   6.714355   6.55311    0.082705   6.547161  
2011            81        57        9.706      10.019451  9.865964   0.07741    9.862742  
2012            81        57        8.557194   8.933097   8.74096    0.095425   8.731774  
2013            81        57        7.359323   7.741645   7.553891   0.097009   7.549742  
2014            81        57        7.890419   8.369193   8.135998   0.121117   8.13029   
2015            81        57        11.189775  11.483516  11.338178  0.07308    11.331677 
2016            81        57        8.264742   8.538258   8.405      0.066959   8.401194  
2017            81        57        8.160419   8.578322   8.372367   0.103717   8.365484  
2018            81        57        7.352065   7.744097   7.555879   0.096835   7.553419  
2019            81        57        7.732419   8.109484   7.915972   0.096127   7.909806  
2020            81        57        8.751806   9.161064   8.973456   0.100592   8.972871  
2021            81        57        8.472129   8.858742   8.655023   0.097861   8.647194  
2022            81        57        7.76271    8.288903   8.038345   0.129511   8.030709  
2023            81        57        7.729367   8.185766   7.959298   0.111821   7.949767