Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            469       445       27.050936  27.337872  27.225034  0.063681   27.241936 
2008            469       445       25.030096  25.53487   25.317296  0.108929   25.330549 
2009            469       445       26.068193  26.63187   26.39372   0.118612   26.364935 
2010            469       445       26.476322  26.783773  26.562903  0.074199   26.536774 
2011            469       445       25.852871  26.309193  26.094862  0.098686   26.100355 
2012            469       445       25.915291  26.34371   26.175363  0.092577   26.175613 
2013            469       445       26.363581  26.686356  26.497139  0.072269   26.486162 
2014            469       445       26.330162  26.714935  26.530037  0.072825   26.52758  
2015            469       445       26.177452  26.619259  26.418487  0.092702   26.427258 
2016            469       445       26.955807  27.304226  27.092246  0.064655   27.073162 
2017            469       445       26.678677  26.972     26.814051  0.0528     26.805935 
2018            469       445       26.513065  26.799484  26.664936  0.06221    26.678709 
2019            469       445       26.39271   26.99358   26.713894  0.137718   26.712452 
2020            469       445       26.194128  26.355097  26.254481  0.032766   26.255936 
2021            469       445       26.744646  27.036291  26.861528  0.051374   26.857193 
2022            469       445       26.259581  26.585548  26.404749  0.081131   26.406097 
2023            469       445       26.48958   26.894096  26.623151  0.119569   26.570774