Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            96        90        29.544367  29.666634  29.612378  0.026942   29.614616 
2008            96        90        28.626633  28.732634  28.683732  0.025668   28.684916 
2009            96        90        29.878267  30.031767  29.9119    0.03388    29.902033 
2010            96        90        29.182467  29.465033  29.278723  0.072363   29.267433 
2011            96        90        29.416866  29.505333  29.452844  0.016666   29.4543   
2012            96        90        28.782833  28.859632  28.829647  0.021261   28.8336   
2013            96        90        29.242466  29.401833  29.30408   0.038675   29.298516 
2014            96        90        29.6001    29.8277    29.672734  0.048484   29.668983 
2015            96        90        29.725367  29.831266  29.755764  0.01996    29.75575  
2016            96        90        29.496134  29.642433  29.580645  0.043712   29.5899   
2017            96        90        29.325167  29.403334  29.362272  0.01768    29.362983 
2018            96        90        29.9305    30.059233  29.985919  0.034064   29.982367 
2019            96        90        29.289833  29.441833  29.350906  0.034625   29.3492   
2020            96        90        29.597166  29.731733  29.665271  0.032615   29.667533 
2021            96        90        29.697332  29.8529    29.781986  0.048399   29.79025  
2022            96        90        29.772367  30.093834  29.880027  0.071326   29.8726   
2023            96        90        29.736567  29.909433  29.801005  0.037929   29.79645