Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            81        35        13.380393  14.131893  13.786629  0.19571    13.7705   
2008            81        35        14.680069  15.352276  15.042368  0.174935   15.028275 
2009            81        35        11.557608  12.308143  11.976933  0.190441   11.979786 
2010            81        35        11.215964  12.11525   11.701089  0.233864   11.682643 
2011            81        35        12.178214  12.916393  12.586532  0.189195   12.580536 
2012            81        35        13.859241  14.461276  14.193369  0.153528   14.191345 
2013            81        35        13.04225   13.913428  13.521996  0.223056   13.515464 
2014            81        35        12.380857  13.589178  13.054817  0.307707   13.054143 
2015            81        35        11.802571  12.726429  12.302898  0.23951    12.282857 
2016            81        35        11.837759  12.639552  12.269837  0.207323   12.251586 
2017            81        35        13.642858  14.351964  14.069891  0.175547   14.079714 
2018            81        35        14.355536  15.091321  14.780596  0.185967   14.789572 
2019            81        35        13.250786  13.764358  13.530899  0.134376   13.525357 
2020            81        35        12.677655  13.498897  13.128396  0.209971   13.123414 
2021            81        35        10.426885  11.017076  10.76667   0.146557   10.771616 
2022            81        35        10.914429  11.822429  11.435654  0.231214   11.438679 
2023            81        35        14.347821  14.847215  14.620852  0.131541   14.610178