Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1213      941       12.611807  13.742806  13.373491  0.273918   13.497742 
2008            1213      941       14.021613  15.000871  14.63976   0.295709   14.705322 
2009            1213      941       13.900613  14.879839  14.557458  0.298197   14.679677 
2010            1213      941       13.163871  13.994032  13.736855  0.249553   13.853291 
2011            1213      941       13.307936  14.087871  13.819648  0.234748   13.909032 
2012            1213      941       12.735323  14.047322  13.558435  0.399108   13.661    
2013            1213      941       13.84971   14.86729   14.523145  0.312094   14.594774 
2014            1213      941       15.027323  15.74271   15.522237  0.220417   15.621839 
2015            1213      941       16.036484  16.640549  16.461081  0.160233   16.543968 
2016            1213      941       12.568322  13.739839  13.309196  0.358682   13.394355 
2017            1213      941       12.868871  13.974291  13.578892  0.331622   13.684968 
2018            1213      941       14.470226  15.469322  15.101895  0.307843   15.157226 
2019            1213      941       13.395871  14.712839  14.245443  0.407293   14.343645 
2020            1213      941       16.247612  21.995743  17.896345  0.567276   17.91971  
2021            1213      941       16.289     19.660549  17.413397  0.433532   17.433968 
2022            1213      941       14.75858   17.172516  15.742771  0.448845   15.769903 
2023            1213      941       16.212355  22.692646  18.039353  0.643919   18.044645