Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            131       110       14.462322  14.83658   14.648582  0.090928   14.644419 
2008            131       110       13.295451  13.585129  13.437223  0.072847   13.443306 
2009            131       110       13.022419  13.217548  13.111846  0.051827   13.111597 
2010            131       110       13.422935  13.607936  13.497712  0.04753    13.496048 
2011            131       110       15.010807  15.257742  15.117641  0.059606   15.111194 
2012            131       110       13.709904  13.965258  13.830387  0.064258   13.826177 
2013            131       110       14.754935  14.943516  14.836694  0.043778   14.833645 
2014            131       110       14.318645  14.600387  14.443175  0.070848   14.436145 
2015            131       110       13.906226  14.130451  14.025342  0.059799   14.024645 
2016            131       110       14.886678  15.064613  14.964876  0.044637   14.963258 
2017            131       110       15.255387  15.580709  15.403445  0.081313   15.396451 
2018            131       110       14.920807  15.218258  15.058417  0.074996   15.0555   
2019            131       110       14.392484  14.610935  14.482105  0.054893   14.476145 
2020            131       110       14.095936  14.402967  14.252911  0.078068   14.257904 
2021            131       110       16.037743  16.261742  16.142019  0.056692   16.146371 
2022            131       110       14.497774  14.745774  14.612465  0.063615   14.616178 
2023            131       110       15.630677  15.809807  15.713648  0.04494    15.712016