Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            559       485       24.86142   26.372774  25.660814  0.345989   25.708193 
2008            559       485       24.811388  25.781904  25.297642  0.207079   25.312098 
2009            559       485       24.699064  25.563387  25.243456  0.176258   25.267355 
2010            559       485       25.288904  26.169903  25.72637   0.161522   25.714838 
2011            559       485       25.505129  26.000322  25.693636  0.093928   25.685936 
2012            559       485       26.866451  27.48658   27.103836  0.133229   27.096451 
2013            559       485       24.991386  27.130806  25.923182  0.558926   25.877483 
2014            559       485       24.989902  26.352354  25.677296  0.297645   25.692614 
2015            559       485       26.422258  26.929548  26.706469  0.108971   26.719582 
2016            559       485       26.382774  27.199871  26.731341  0.18546    26.747742 
2017            559       485       24.844225  26.288065  25.350237  0.363147   25.26329  
2018            559       485       25.796904  26.419838  26.14407   0.137914   26.138388 
2019            559       485       26.583645  27.036324  26.80268   0.105784   26.794065 
2020            559       485       26.708033  27.328032  27.04667   0.134848   27.049452 
2021            559       485       25.085838  25.932711  25.414038  0.173531   25.417192 
2022            559       485       25.268     25.786064  25.509445  0.118158   25.503807 
2023            559       485       26.590517  27.211323  26.889727  0.160051   26.863838