Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            2800      2779      23.180065  24.551096  23.904598  0.344818   23.963774 
2008            2800      2779      21.515162  23.527548  22.567466  0.501403   22.664097 
2009            2800      2779      20.98213   22.421259  21.651128  0.371532   21.670967 
2010            2800      2779      21.434322  23.177485  22.320936  0.43186    22.349291 
2011            2800      2779      19.713419  21.932968  20.8575    0.568572   20.894678 
2012            2800      2779      20.880678  22.844032  21.919372  0.481726   22.015129 
2013            2800      2779      22.632872  23.895258  23.269565  0.295061   23.337936 
2014            2800      2779      20.842386  23.832581  22.336304  0.78107    22.394161 
2015            2800      2779      22.164194  23.858774  22.868001  0.377685   22.841999 
2016            2800      2779      22.349064  25.047323  23.721738  0.688455   23.746387 
2017            2800      2779      22.089581  24.240904  23.164877  0.512692   23.205742 
2018            2800      2779      19.864485  22.830645  21.471542  0.768503   21.552645 
2019            2800      2779      21.088291  23.291098  22.021465  0.538406   22.01129  
2020            2800      2779      22.026064  24.462936  23.12705   0.641677   23.135775 
2021            2800      2779      20.820774  22.810774  21.708497  0.468161   21.72929  
2022            2800      2779      21.799936  24.002968  22.914029  0.519119   22.929096 
2023            2800      2779      20.983257  23.982935  22.502312  0.773498   22.564903