Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            124       24        15.144516  15.326612  15.256507  0.04379    15.254371 
2008            124       24        15.984     16.100065  16.055183  0.030887   16.062354 
2009            124       24        14.04671   14.236903  14.165247  0.048198   14.167564 
2010            124       24        11.625774  11.75158   11.705539  0.03104    11.705758 
2011            124       24        15.541419  15.657387  15.617583  0.028488   15.619871 
2012            124       24        17.598904  17.737289  17.687488  0.036296   17.6925   
2013            124       24        12.766935  13.063419  12.93897   0.077029   12.945484 
2014            124       24        11.876323  12.310032  12.131038  0.105118   12.140903 
2015            124       24        12.882903  13.237645  13.094507  0.085908   13.10829  
2016            124       24        15.924193  16.08671   16.016117  0.04387    16.018613 
2017            124       24        15.740226  15.968355  15.875883  0.056      15.871161 
2018            124       24        14.853323  15.053839  14.972563  0.050637   14.978178 
2019            124       24        15.269613  15.497548  15.413212  0.057213   15.414838 
2020            124       24        16.273483  16.426516  16.36013   0.039865   16.363161 
2021            124       24        15.368645  15.410871  15.396043  0.011185   15.398274 
2022            124       24        15.971323  16.153742  16.087112  0.045693   16.0885   
2023            124       24        17.463741  17.599968  17.546981  0.038144   17.554693