Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1060      930       23.340363  23.878941  23.617319  0.100198   23.630519 
2008            1060      930       23.061266  23.618019  23.351792  0.121828   23.36922  
2009            1060      930       23.084126  23.677017  23.38679   0.121226   23.39797  
2010            1060      930       22.811563  23.304293  23.052481  0.100026   23.065149 
2011            1060      930       23.191479  23.802616  23.499413  0.132726   23.506577 
2012            1060      930       23.734684  24.285889  24.032588  0.107012   24.045561 
2013            1060      930       22.86857   23.476965  23.217548  0.123181   23.234992 
2014            1060      930       22.471077  23.085739  22.785218  0.125601   22.794271 
2015            1060      930       23.191965  23.778469  23.541585  0.118983   23.562554 
2016            1060      930       23.526848  24.135897  23.861505  0.114285   23.879562 
2017            1060      930       23.787266  24.314112  24.100014  0.100819   24.121887 
2018            1060      930       23.14489   23.835567  23.540434  0.131757   23.556703 
2019            1060      930       22.731762  23.380787  23.108266  0.133454   23.146352 
2020            1060      930       23.563972  23.766623  23.682936  0.048564   23.689767 
2021            1060      930       23.258148  23.466042  23.417296  0.036562   23.425439 
2022            1060      930       22.885365  23.477409  23.241378  0.127506   23.281793 
2023            1060      930       23.633934  23.893152  23.788767  0.067302   23.795592