Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            435       393       13.3672    13.414866  13.39619   0.011302   13.395333 
2008            435       393       12.029034  12.822033  12.411011  0.223222   12.410933 
2009            435       393       13.6106    14.361033  14.030009  0.194058   14.0955   
2010            435       393       13.199966  13.897067  13.574826  0.201574   13.602034 
2011            435       393       13.937366  14.3756    14.209004  0.147522   14.270534 
2012            435       393       13.917     14.395133  14.201626  0.133166   14.229167 
2013            435       393       14.5073    15.094733  14.833005  0.175529   14.8636   
2014            435       393       13.276167  14.0984    13.687146  0.215269   13.688033 
2015            435       393       11.7067    12.7599    12.165483  0.257399   12.133766 
2016            435       393       13.798833  14.440066  14.165834  0.150336   14.180667 
2017            435       393       14.0256    14.7137    14.389324  0.179047   14.417    
2018            435       393       14.3449    14.974633  14.689793  0.153714   14.703033 
2019            435       393       12.8144    13.8863    13.314225  0.290665   13.3214   
2020            435       393       14.9764    16.008667  15.575454  0.284896   15.623034 
2021            435       393       15.7644    16.964199  16.38845   0.27363    16.397699 
2022            435       393       13.755767  14.1862    13.96754   0.124308   13.978367 
2023            435       393       13.346766  14.551434  14.054278  0.281451   14.113234