Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            2054      1756      11.724452  15.096258  13.101797  0.615732   12.994984 
2008            2054      1756      9.856065   14.026807  11.492591  0.773302   11.349468 
2009            2054      1756      10.309548  14.155968  11.745032  0.7039     11.578951 
2010            2054      1756      6.015451   10.150193  8.005708   0.950644   8.186597  
2011            2054      1756      10.429516  13.749323  12.018258  0.678878   12.080694 
2012            2054      1756      9.733742   12.253323  10.877776  0.421701   10.882726 
2013            2054      1756      9.216129   13.724807  10.949662  0.80317    10.799549 
2014            2054      1756      8.62458    12.34829   10.458111  0.702246   10.480129 
2015            2054      1756      13.095225  15.655032  14.292366  0.430347   14.28621  
2016            2054      1756      8.609387   13.399259  10.542918  0.853754   10.533516 
2017            2054      1756      9.054129   13.501064  11.162104  0.841221   11.286984 
2018            2054      1756      7.367968   10.579032  8.994769   0.620649   9.183677  
2019            2054      1756      8.067064   12.123258  9.81305    0.747424   9.855597  
2020            2054      1756      9.778193   13.947226  11.753703  0.899414   11.88029  
2021            2054      1756      10.058354  13.291516  11.274029  0.576069   11.246984 
2022            2054      1756      9.820097   13.413322  11.465604  0.684194   11.398758 
2023            2054      1756      9.463866   11.316167  10.202447  0.296888   10.207417