Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            74        54        27.662935  27.701775  27.684451  0.01017    27.685758 
2008            74        54        28.092129  28.139032  28.116378  0.013132   28.117419 
2009            74        54        27.502419  27.560419  27.54095   0.015435   27.544436 
2010            74        54        27.867807  27.963968  27.931995  0.029235   27.942533 
2011            74        54        28.238323  28.351257  28.300306  0.033049   28.3075   
2012            74        54        28.964903  29.070322  29.034271  0.025266   29.040371 
2013            74        54        28.251194  28.311193  28.292093  0.017375   28.297677 
2014            74        54        28.420839  28.490549  28.468029  0.022068   28.47621  
2015            74        54        27.950258  28.034742  28.001484  0.025421   28.008016 
2016            74        54        28.650419  28.826967  28.751732  0.055852   28.758162 
2017            74        54        28.569485  28.665096  28.62262   0.022586   28.624903 
2018            74        54        28.851452  28.981096  28.917268  0.036026   28.919743 
2019            74        54        28.765676  28.960871  28.889873  0.055801   28.90521  
2020            74        54        29.486742  29.661676  29.594348  0.042561   29.600065 
2021            74        54        28.273064  28.397646  28.3589    0.036061   28.369661 
2022            74        54        28.675259  28.761452  28.723268  0.025215   28.73021  
2023            74        54        29.364807  29.542     29.475749  0.044361   29.486565