Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            15120     14316     11.446355  16.993162  13.080068  1.267463   12.802355 
2008            15120     14316     10.732097  15.57971   12.332986  1.123482   12.141661 
2009            15120     14316     11.064903  17.055258  12.788205  1.439102   12.203322 
2010            15120     14316     11.002871  17.150484  12.693325  1.55279    11.968952 
2011            15120     14316     10.414935  16.953419  12.164789  1.571902   11.4675   
2012            15120     14316     11.223968  17.484161  13.079407  1.577997   12.381467 
2013            15120     14316     11.070065  17.677872  12.877307  1.644593   12.178678 
2014            15120     14316     10.389742  18.899355  13.282791  2.088258   12.623758 
2015            15120     14316     11.982     18.102259  13.63464   1.48713    13.066484 
2016            15120     14316     11.30242   17.606483  13.639234  1.570027   13.049242 
2017            15120     14316     11.356194  17.439936  13.178235  1.478105   12.614855 
2018            15120     14316     11.726516  17.972517  13.442731  1.541828   12.830968 
2019            15120     14316     11.370291  18.276064  13.434391  1.790989   12.709145 
2020            15120     14316     11.511871  18.900677  14.172128  1.813209   14.097629 
2021            15120     14316     11.823032  19.165516  14.094979  1.757092   13.605968 
2022            15120     14316     11.852967  20.030678  15.663972  2.07393    15.705178 
2023            15120     14316     12.102775  18.315613  14.213797  1.461925   14.020258