Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            6786      5027      24.755356  26.601549  25.876711  0.327527   25.982645 
2008            6786      5027      24.854612  26.957096  26.391289  0.439149   26.553677 
2009            6786      5027      24.656807  26.441097  25.716683  0.28515    25.754967 
2010            6786      5027      25.417677  27.824097  27.214649  0.524636   27.431227 
2011            6786      5027      25.693838  28.130129  27.31408   0.505662   27.44758  
2012            6786      5027      26.817322  28.274612  27.732272  0.302819   27.792484 
2013            6786      5027      25.280064  27.975903  27.07322   0.600311   27.158129 
2014            6786      5027      24.96529   26.87529   26.09789   0.32181    26.155096 
2015            6786      5027      25.906548  27.58029   26.941073  0.27341    26.975355 
2016            6786      5027      26.386644  28.128225  27.523014  0.349109   27.600033 
2017            6786      5027      25.084322  28.327354  27.263403  0.702425   27.400032 
2018            6786      5027      25.976839  27.620096  26.935124  0.287881   26.995356 
2019            6786      5027      26.729258  28.618225  28.030458  0.405439   28.154161 
2020            6786      5027      27.006903  29.234646  28.516882  0.445072   28.616484 
2021            6786      5027      25.143871  28.062807  27.090999  0.572531   27.223936 
2022            6786      5027      25.297226  28.003742  26.993403  0.467971   27.092386 
2023            6786      5027      26.161484  28.530128  27.57389   0.353519   27.610516