Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            2054      1756      27.147968  28.292065  28.029407  0.174484   28.054064 
2008            2054      1756      26.47171   27.35729   27.061544  0.162734   27.084452 
2009            2054      1756      26.124807  27.826742  26.903001  0.313994   26.909629 
2010            2054      1756      26.226612  28.02813   27.0667    0.295951   27.06821  
2011            2054      1756      27.15658   28.061838  27.724752  0.200914   27.75571  
2012            2054      1756      26.315742  27.359451  26.866182  0.193385   26.844953 
2013            2054      1756      24.924355  26.152355  25.664242  0.236152   25.677791 
2014            2054      1756      25.555065  26.505419  26.162823  0.162657   26.180661 
2015            2054      1756      26.477194  27.428354  27.159272  0.195662   27.182371 
2016            2054      1756      27.344032  28.926355  28.230482  0.281636   28.253435 
2017            2054      1756      24.998581  26.923193  26.102957  0.458288   26.118226 
2018            2054      1756      26.516516  28.030001  27.469866  0.25916    27.527759 
2019            2054      1756      25.879162  27.281258  26.49139   0.290697   26.471452 
2020            2054      1756      25.882839  27.840612  26.884343  0.504089   26.865387 
2021            2054      1756      26.949516  28.292549  27.853904  0.240405   27.907338 
2022            2054      1756      26.010387  27.741549  26.745969  0.399442   26.70871  
2023            2054      1756      25.899742  27.481743  26.573469  0.405913   26.507983