Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            207       197       29.415899  29.606899  29.503347  0.05155    29.488167 
2008            207       197       27.982767  28.0581    28.028626  0.019366   28.031767 
2009            207       197       29.0602    29.202667  29.140515  0.034983   29.1381   
2010            207       197       29.161566  29.311766  29.232782  0.039206   29.236166 
2011            207       197       29.286367  29.507433  29.360706  0.063624   29.330299 
2012            207       197       28.209467  28.373734  28.335269  0.033698   28.346933 
2013            207       197       29.357334  29.397766  29.377249  0.008231   29.377167 
2014            207       197       28.956633  29.008333  28.991179  0.013251   28.994101 
2015            207       197       29.090866  29.158167  29.119187  0.012411   29.1206   
2016            207       197       30.247     30.362267  30.2897    0.030271   30.282867 
2017            207       197       28.218866  28.351334  28.264647  0.027535   28.255367 
2018            207       197       29.2568    29.3634    29.306908  0.023929   29.308268 
2019            207       197       29.631201  29.732233  29.682953  0.026259   29.687166 
2020            207       197       28.494934  28.880033  28.670103  0.09163    28.661066 
2021            207       197       29.321266  29.432301  29.379367  0.030255   29.381268 
2022            207       197       29.6127    29.742767  29.681575  0.036864   29.674067 
2023            207       197       30.402134  30.595734  30.516466  0.042262   30.5273