Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            38        33        13.548833  13.718833  13.641131  0.048619   13.651834 
2008            38        33        12.9595    13.085167  13.032022  0.03146    13.032733 
2009            38        33        14.7508    14.869267  14.812652  0.034263   14.818767 
2010            38        33        13.9045    14.0254    13.970795  0.032053   13.9732   
2011            38        33        13.819533  13.959867  13.905061  0.037652   13.905567 
2012            38        33        14.216367  14.386633  14.309418  0.048205   14.320633 
2013            38        33        15.815267  15.9219    15.876161  0.026988   15.8772   
2014            38        33        15.436767  15.567467  15.515852  0.033731   15.5145   
2015            38        33        14.5883    14.748266  14.677174  0.041657   14.6813   
2016            38        33        13.867967  14.061833  13.987265  0.052212   13.986767 
2017            38        33        13.0886    13.309733  13.217006  0.059388   13.2225   
2018            38        33        14.180834  14.3846    14.293423  0.056321   14.3074   
2019            38        33        15.980667  16.123766  16.06505   0.036647   16.063601 
2020            38        33        14.122066  14.340466  14.21414   0.062704   14.214567 
2021            38        33        13.587934  13.823767  13.711701  0.069601   13.721033 
2022            38        33        13.330867  13.605066  13.487763  0.073815   13.496067 
2023            38        33        14.012834  14.212967  14.117098  0.060022   14.123134