Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            6786      5027      26.467936  28.252258  27.284273  0.292719   27.294645 
2008            6786      5027      24.81271   26.432678  25.891779  0.31664    25.958452 
2009            6786      5027      25.840872  28.012806  27.455902  0.492265   27.694515 
2010            6786      5027      25.433193  27.762646  26.993429  0.506755   27.17016  
2011            6786      5027      26.123291  27.557678  27.08112   0.299435   27.174484 
2012            6786      5027      25.858227  27.798515  27.248481  0.39415    27.388    
2013            6786      5027      24.628548  25.942646  25.441976  0.255431   25.457001 
2014            6786      5027      24.931032  26.252451  25.736344  0.215369   25.785192 
2015            6786      5027      25.922935  27.494387  26.904304  0.272305   26.952644 
2016            6786      5027      26.629967  29.07      28.37024   0.573999   28.536903 
2017            6786      5027      25.076258  27.140709  26.371031  0.389853   26.450903 
2018            6786      5027      26.141516  28.356451  27.602758  0.406693   27.694355 
2019            6786      5027      25.491838  27.199194  26.566389  0.391417   26.633741 
2020            6786      5027      26.048388  28.395548  27.56722   0.458369   27.659225 
2021            6786      5027      26.305033  28.249903  27.563985  0.280365   27.616129 
2022            6786      5027      25.264097  28.273033  27.251758  0.677732   27.340872 
2023            6786      5027      24.518612  27.870161  26.763783  0.616895   26.86142