Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            66        42        9.11229    9.531806   9.322712   0.109373   9.323839  
2008            66        42        8.023678   8.378355   8.196895   0.095195   8.203129  
2009            66        42        9.093258   9.410452   9.265272   0.074851   9.263403  
2010            66        42        6.842516   7.146226   7.031008   0.062744   7.028419  
2011            66        42        10.56058   10.795451  10.709644  0.04758    10.707549 
2012            66        42        8.910322   9.159645   9.052056   0.052759   9.047516  
2013            66        42        7.59529    7.977452   7.797641   0.092568   7.800419  
2014            66        42        8.149      8.510581   8.333744   0.095472   8.339323  
2015            66        42        12.002516  12.284871  12.140076  0.072342   12.142371 
2016            66        42        9.011871   9.288096   9.200966   0.05376    9.207081  
2017            66        42        9.344613   9.67029    9.533336   0.068871   9.528435  
2018            66        42        7.865258   8.204387   8.046445   0.080603   8.044193  
2019            66        42        9.084387   9.353806   9.249909   0.057114   9.247968  
2020            66        42        9.966129   10.294452  10.193531  0.061839   10.200839 
2021            66        42        9.589516   9.90971    9.823118   0.065802   9.837468  
2022            66        42        8.762033   9.132903   8.965191   0.084451   8.957532  
2023            66        42        9.027133   9.418467   9.243688   0.092418   9.245216