Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            138       95        14.427067  14.738566  14.588134  0.074212   14.585767 
2008            138       95        14.444067  14.606633  14.522682  0.044556   14.527433 
2009            138       95        14.597466  14.778733  14.672549  0.046452   14.665    
2010            138       95        14.9641    15.148533  15.048979  0.039795   15.046133 
2011            138       95        16.445168  16.625967  16.52196   0.039262   16.524067 
2012            138       95        15.6093    16.2316    15.929049  0.168627   15.911767 
2013            138       95        14.737534  15.0178    14.885265  0.064727   14.8952   
2014            138       95        14.9748    15.3098    15.144386  0.071781   15.154233 
2015            138       95        15.628433  15.946267  15.801725  0.072776   15.8053   
2016            138       95        15.813733  15.912434  15.849002  0.025252   15.844833 
2017            138       95        14.566867  14.7804    14.687769  0.048693   14.6958   
2018            138       95        16.105934  16.547533  16.352585  0.116827   16.346434 
2019            138       95        14.996433  15.1762    15.091958  0.039799   15.0896   
2020            138       95        14.476833  14.708433  14.589379  0.049059   14.596    
2021            138       95        16.564333  16.8402    16.694259  0.082957   16.6998   
2022            138       95        15.7352    15.8967    15.803336  0.049213   15.798533 
2023            138       95        16.436068  16.523867  16.469255  0.023669   16.461466