Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            435       435       22.105194  22.702065  22.42674   0.1411     22.454226 
2008            435       435       21.792162  22.342743  22.019031  0.14419    22.008968 
2009            435       435       22.572128  23.745356  23.313627  0.30519    23.352386 
2010            435       435       22.303968  23.112129  22.938042  0.18955    23.004969 
2011            435       435       22.676645  22.982033  22.809081  0.072067   22.79229  
2012            435       435       23.570644  24.602354  24.280313  0.279853   24.379    
2013            435       435       21.275936  22.014709  21.748628  0.139698   21.791065 
2014            435       435       21.696354  23.167322  22.802715  0.319232   22.863613 
2015            435       435       22.835968  23.661581  23.303     0.141993   23.332001 
2016            435       435       23.638515  24.391001  24.195403  0.16104    24.245646 
2017            435       435       21.810516  22.933226  22.574518  0.254888   22.67771  
2018            435       435       23.621161  24.234903  23.934157  0.19497    23.965452 
2019            435       435       22.23671   22.987484  22.446463  0.188446   22.380226 
2020            435       435       23.052967  23.96871   23.757667  0.208627   23.845839 
2021            435       435       22.344936  23.65229   23.162921  0.309299   23.273226 
2022            435       435       23.706064  24.037258  23.843343  0.072505   23.835354 
2023            435       435       22.067259  22.697903  22.49695   0.101065   22.499903