Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1808      1738      28.402967  28.755934  28.620879  0.077446   28.639884 
2008            1808      1738      26.323099  26.818367  26.623897  0.099913   26.633467 
2009            1808      1738      27.862934  28.050833  27.944833  0.038083   27.947701 
2010            1808      1738      28.685867  29.044767  28.928948  0.077193   28.951367 
2011            1808      1738      27.187067  27.660933  27.388667  0.091933   27.374383 
2012            1808      1738      27.605267  27.974434  27.798667  0.07866    27.8004   
2013            1808      1738      28.742834  29.2481    29.014456  0.0986     29.018467 
2014            1808      1738      28.622999  28.871799  28.771045  0.047579   28.774783 
2015            1808      1738      27.6791    27.967033  27.813362  0.051117   27.817917 
2016            1808      1738      29.2829    29.570999  29.437984  0.066959   29.445434 
2017            1808      1738      26.9743    27.330034  27.139523  0.074144   27.129868 
2018            1808      1738      29.051399  29.498667  29.276374  0.090798   29.25885  
2019            1808      1738      29.622467  30.009533  29.815912  0.085439   29.810718 
2020            1808      1738      27.683067  27.992634  27.836959  0.070699   27.854616 
2021            1808      1738      27.5452    27.875566  27.703883  0.088343   27.702733 
2022            1808      1738      28.448099  28.899099  28.749737  0.093981   28.762933 
2023            1808      1738      28.879633  29.558266  29.22565   0.18329    29.238167