Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1060      930       26.39871   27.078096  26.755657  0.132642   26.767064 
2008            1060      930       24.389193  25.238646  24.780325  0.180307   24.798017 
2009            1060      930       25.542194  26.387903  25.947367  0.161961   25.969645 
2010            1060      930       25.689968  26.429581  25.925312  0.120443   25.902903 
2011            1060      930       25.260515  25.912161  25.468723  0.097259   25.438338 
2012            1060      930       25.269743  25.85371   25.565849  0.153556   25.530597 
2013            1060      930       25.453711  26.142742  25.779603  0.186663   25.749355 
2014            1060      930       25.660227  26.558613  25.92591   0.18808    25.871758 
2015            1060      930       25.24687   26.241516  25.648624  0.192493   25.64784  
2016            1060      930       26.410742  27.048033  26.712967  0.136871   26.688532 
2017            1060      930       26.126291  26.704098  26.433997  0.128747   26.424598 
2018            1060      930       25.800968  26.703871  26.229521  0.181707   26.242548 
2019            1060      930       25.942387  26.673742  26.306152  0.165393   26.302    
2020            1060      930       25.463354  25.875935  25.680191  0.088969   25.679049 
2021            1060      930       26.318258  26.665356  26.476453  0.078404   26.468274 
2022            1060      930       25.415903  26.024807  25.666491  0.115338   25.666822 
2023            1060      930       25.924065  26.644516  26.310045  0.165704   26.324129