Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            4230      4141      24.837677  25.538677  25.352316  0.139517   25.39887  
2008            4230      4141      24.459644  25.492388  25.062656  0.243714   25.118839 
2009            4230      4141      24.824839  26.000484  25.572979  0.266665   25.642065 
2010            4230      4141      26.109709  26.859838  26.504632  0.145053   26.495161 
2011            4230      4141      24.609774  25.321646  24.969964  0.163096   24.979517 
2012            4230      4141      26.610096  27.287161  27.051246  0.142689   27.075291 
2013            4230      4141      23.365419  24.158323  23.839911  0.170588   23.862614 
2014            4230      4141      24.374516  25.041935  24.860218  0.161173   24.915806 
2015            4230      4141      25.615612  26.446354  26.191879  0.179044   26.245096 
2016            4230      4141      25.038097  25.67971   25.440695  0.153513   25.47242  
2017            4230      4141      24.117805  24.726     24.374859  0.163674   24.318678 
2018            4230      4141      26.549257  27.52029   27.143864  0.256032   27.19729  
2019            4230      4141      25.63571   26.660999  26.326265  0.184222   26.362097 
2020            4230      4141      24.571451  25.68784   24.997997  0.2639     24.953806 
2021            4230      4141      24.569839  25.716806  24.952403  0.24419    24.895258 
2022            4230      4141      26.647259  27.589483  27.041532  0.233932   26.983871 
2023            4230      4141      25.861355  26.395388  26.140949  0.132767   26.150097