Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            117       54        29.784935  29.837936  29.821951  0.014506   29.826661 
2008            117       54        27.554419  27.680742  27.619149  0.026885   27.618999 
2009            117       54        28.757     28.814161  28.792462  0.01498    28.796548 
2010            117       54        30.237     30.370806  30.297637  0.034537   30.294    
2011            117       54        29.387774  29.414129  29.401606  0.006203   29.402113 
2012            117       54        28.363903  28.487354  28.421549  0.027489   28.41879  
2013            117       54        28.698452  28.833033  28.760377  0.032962   28.762646 
2014            117       54        29.299807  29.367128  29.326516  0.017544   29.322661 
2015            117       54        29.243839  29.33658   29.276279  0.023316   29.268677 
2016            117       54        30.132645  30.214581  30.167678  0.015478   30.16892  
2017            117       54        28.906807  28.952581  28.928119  0.008828   28.928162 
2018            117       54        28.852581  29.018677  28.946442  0.04654    28.945032 
2019            117       54        29.358257  29.518614  29.4507    0.039094   29.450032 
2020            117       54        29.443903  29.476549  29.461672  0.006279   29.461016 
2021            117       54        28.969967  29.106968  29.048909  0.041157   29.054855 
2022            117       54        29.246485  29.382872  29.329232  0.031797   29.326178 
2023            117       54        29.744194  30.068773  29.928272  0.090398   29.938193