Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            943       831       26.941355  27.280806  27.07981   0.082355   27.059065 
2008            943       831       25.312098  25.932226  25.631348  0.140712   25.638807 
2009            943       831       27.326612  27.84758   27.496172  0.145551   27.434484 
2010            943       831       25.355097  25.706259  25.577111  0.066179   25.593    
2011            943       831       24.683807  25.390614  25.009013  0.173026   24.978613 
2012            943       831       26.245516  26.686903  26.498149  0.086785   26.517645 
2013            943       831       26.271549  26.93387   26.588394  0.133743   26.601677 
2014            943       831       25.80587   26.45116   26.128495  0.108637   26.126451 
2015            943       831       25.67042   26.553129  26.10645   0.177648   26.133936 
2016            943       831       25.682032  26.295807  26.040577  0.12507    26.070969 
2017            943       831       26.300484  27.002871  26.621042  0.168412   26.590517 
2018            943       831       27.717484  27.991322  27.880528  0.058413   27.894386 
2019            943       831       27.111807  27.612904  27.391382  0.111632   27.419903 
2020            943       831       27.052355  27.400774  27.167441  0.068018   27.159193 
2021            943       831       27.375742  27.842484  27.567655  0.089512   27.569225 
2022            943       831       24.565613  25.257999  24.827988  0.16467    24.782129 
2023            943       831       25.434258  26.024323  25.750765  0.108066   25.781645