Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            126       60        15.968033  16.664064  16.389516  0.149449   16.396049 
2008            126       60        12.762742  13.62529   13.265649  0.215922   13.293484 
2009            126       60        13.690064  14.621549  14.252553  0.207555   14.261387 
2010            126       60        11.676452  12.584097  12.215787  0.205921   12.224936 
2011            126       60        14.648258  15.698936  15.292611  0.221605   15.30671  
2012            126       60        12.766291  13.919387  13.456688  0.255646   13.465532 
2013            126       60        13.277355  14.403322  13.959145  0.242486   13.970451 
2014            126       60        12.766161  13.830258  13.426584  0.2246     13.442419 
2015            126       60        16.261452  17.154484  16.82942   0.180317   16.851952 
2016            126       60        14.325839  15.568484  15.106683  0.253082   15.129839 
2017            126       60        12.965064  14.121064  13.717959  0.230507   13.77221  
2018            126       60        12.533581  13.681065  13.246042  0.234168   13.269484 
2019            126       60        13.716258  14.681032  14.331462  0.197535   14.357533 
2020            126       60        13.397355  14.342871  13.987921  0.194187   14.001855 
2021            126       60        15.081451  15.968774  15.655868  0.18071    15.691129 
2022            126       60        13.79529   14.796323  14.440036  0.201181   14.469274 
2023            126       60        13.2226    14.089133  13.756753  0.17388    13.779617