Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            890       875       28.424833  28.593533  28.504593  0.040835   28.4991   
2008            890       875       29.337999  29.804667  29.575602  0.130035   29.5788   
2009            890       875       29.071466  29.5357    29.342947  0.099008   29.3521   
2010            890       875       30.306967  30.561966  30.450562  0.053899   30.450134 
2011            890       875       29.749733  30.304399  30.125579  0.131995   30.1632   
2012            890       875       28.655901  29.042933  28.902359  0.080122   28.926701 
2013            890       875       29.350067  29.852066  29.664659  0.123284   29.668367 
2014            890       875       28.343599  28.9321    28.739868  0.123533   28.777267 
2015            890       875       29.367901  29.649866  29.557359  0.05749    29.568399 
2016            890       875       29.443233  29.770967  29.594337  0.097203   29.597099 
2017            890       875       27.613434  27.9133    27.813081  0.074663   27.841499 
2018            890       875       29.862766  30.229534  30.086581  0.076052   30.100567 
2019            890       875       29.718599  29.9562    29.84371   0.057367   29.8484   
2020            890       875       28.356899  28.753799  28.550351  0.106344   28.560167 
2021            890       875       28.205866  28.5903    28.349294  0.086813   28.331566 
2022            890       875       30.541967  30.850901  30.700164  0.053728   30.700733 
2023            890       875       29.3894    29.724899  29.61155   0.072803   29.625767