Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            138       95        3.961833   4.1393     4.042946   0.045237   4.038466  
2008            138       95        5.648467   5.803267   5.713852   0.047793   5.7005    
2009            138       95        4.8502     5.0458     4.939034   0.055923   4.931833  
2010            138       95        6.6112     6.761633   6.68714    0.044241   6.691833  
2011            138       95        4.844862   4.900207   4.869143   0.011825   4.872483  
2012            138       95        6.3907     6.508133   6.428151   0.024878   6.421633  
2013            138       95        5.808434   5.946967   5.870293   0.045291   5.867167  
2014            138       95        3.762267   4.069667   3.922492   0.082613   3.922833  
2015            138       95        3.777667   3.9195     3.819497   0.036021   3.810733  
2016            138       95        5.3421     5.4968     5.40346    0.03973    5.3902    
2017            138       95        5.2991     5.516767   5.412405   0.055429   5.413633  
2018            138       95        4.823133   4.912633   4.850364   0.018626   4.844767  
2019            138       95        4.314833   4.4706     4.411432   0.043492   4.423433  
2020            138       95        5.230166   5.399933   5.299245   0.056744   5.290534  
2021            138       95        6.010366   6.186367   6.089352   0.052895   6.0755    
2022            138       95        5.396767   5.4782     5.414971   0.017856   5.407467  
2023            138       95        6.060483   6.21131    6.134125   0.044665   6.130241