Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            559       485       26.603323  27.785322  27.391452  0.254389   27.449324 
2008            559       485       25.286097  26.833     26.161536  0.303862   26.176388 
2009            559       485       25.537645  26.427485  25.832241  0.212567   25.780258 
2010            559       485       25.561743  26.594162  25.974279  0.215263   25.972162 
2011            559       485       26.479033  27.297838  27.025116  0.153399   27.030743 
2012            559       485       25.633839  26.534645  25.990458  0.213123   25.959936 
2013            559       485       24.609936  25.210548  24.833645  0.121899   24.826515 
2014            559       485       25.118935  25.899387  25.542964  0.158735   25.571096 
2015            559       485       25.94158   26.771097  26.366085  0.159283   26.371872 
2016            559       485       26.473064  27.731226  27.1212    0.289511   27.141451 
2017            559       485       24.914484  25.269484  25.097644  0.077126   25.092386 
2018            559       485       26.267967  26.931162  26.620677  0.140894   26.645645 
2019            559       485       25.551645  26.062483  25.818937  0.11436    25.830999 
2020            559       485       25.824741  26.46929   26.123563  0.159845   26.124323 
2021            559       485       26.832548  27.527548  27.182418  0.173011   27.170645 
2022            559       485       25.651356  26.129194  25.84155   0.094883   25.831259 
2023            559       485       25.55187   25.98242   25.772188  0.092053   25.775646