Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            112       58        27.520323  27.670322  27.594927  0.040988   27.593016 
2008            112       58        27.334969  27.521162  27.434733  0.048321   27.434678 
2009            112       58        27.163322  27.316612  27.245544  0.044672   27.24321  
2010            112       58        27.162001  27.279646  27.227198  0.029209   27.22729  
2011            112       58        27.605097  27.780388  27.692359  0.052351   27.690258 
2012            112       58        28.400967  28.573549  28.494036  0.0442     28.494516 
2013            112       58        27.604387  27.722387  27.665631  0.031194   27.665    
2014            112       58        27.929129  28.121775  28.036532  0.057538   28.044081 
2015            112       58        27.353645  27.493065  27.421888  0.040791   27.420742 
2016            112       58        28.110838  28.249258  28.169206  0.029654   28.1715   
2017            112       58        27.554064  27.769968  27.672517  0.052941   27.672677 
2018            112       58        28.638903  28.866613  28.749357  0.063516   28.746161 
2019            112       58        28.019773  28.188999  28.109278  0.049291   28.109403 
2020            112       58        28.546741  28.688936  28.620647  0.036519   28.619113 
2021            112       58        27.613773  27.827065  27.718538  0.062911   27.712387 
2022            112       58        28.349419  28.468323  28.407334  0.033679   28.405532 
2023            112       58        28.540773  28.747839  28.644244  0.059808   28.637757