Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            124       96        20.493767  21.007668  20.767722  0.138624   20.790001 
2008            124       96        20.746     21.143433  20.94647   0.095824   20.948584 
2009            124       96        20.4184    20.935101  20.697048  0.134133   20.720883 
2010            124       96        20.712732  21.163799  20.961727  0.124548   20.987734 
2011            124       96        19.698967  20.274033  20.021172  0.161424   20.057383 
2012            124       96        19.977766  20.5306    20.287095  0.153345   20.3245   
2013            124       96        20.971666  21.4755    21.255931  0.139367   21.283484 
2014            124       96        19.629499  20.314899  20.001777  0.2062     20.048783 
2015            124       96        22.0546    22.4599    22.262846  0.104168   22.270301 
2016            124       96        21.725967  22.163834  21.949442  0.115961   21.9539   
2017            124       96        20.698799  21.240534  20.977294  0.141803   20.984633 
2018            124       96        21.1651    21.676434  21.460822  0.14606    21.496751 
2019            124       96        20.5308    21.1129    20.824494  0.147691   20.826033 
2020            124       96        21.3601    21.951633  21.670082  0.155453   21.686216 
2021            124       96        19.450333  20.3901    19.986637  0.279252   20.046683 
2022            124       96        20.437689  20.947309  20.712359  0.137614   20.729087 
2023            124       96        20.648666  21.094233  20.880079  0.115157   20.881367