Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            207       197       22.501101  23.044399  22.813565  0.127485   22.831467 
2008            207       197       22.028534  22.476732  22.24642   0.108844   22.244867 
2009            207       197       21.1658    21.679533  21.439594  0.11734    21.450533 
2010            207       197       22.364634  22.746468  22.573775  0.087985   22.568766 
2011            207       197       21.754833  22.360199  22.085349  0.141446   22.0958   
2012            207       197       21.891466  22.704634  22.321659  0.195355   22.340866 
2013            207       197       22.149799  22.8606    22.549712  0.182261   22.578833 
2014            207       197       22.516533  22.789066  22.682895  0.060227   22.6861   
2015            207       197       22.415667  23.046833  22.764423  0.147227   22.780266 
2016            207       197       23.501034  23.9622    23.7449    0.10721    23.740601 
2017            207       197       23.312733  23.727167  23.561475  0.085117   23.570633 
2018            207       197       22.309067  22.9774    22.679696  0.156844   22.6922   
2019            207       197       20.702133  21.409967  21.10112   0.165142   21.117533 
2020            207       197       23.134501  23.333633  23.215611  0.052545   23.211    
2021            207       197       22.183834  22.892967  22.599727  0.15578    22.605066 
2022            207       197       22.695551  23.064518  22.896457  0.084769   22.88731  
2023            207       197       21.980034  22.366133  22.208135  0.080263   22.206667