Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            125       110       19.218903  19.322807  19.274232  0.025035   19.27779  
2008            125       110       18.838259  19.18742   19.037926  0.100035   19.045774 
2009            125       110       18.635323  18.702484  18.667999  0.017954   18.669598 
2010            125       110       15.151548  15.252581  15.188569  0.023975   15.182129 
2011            125       110       20.579613  20.796806  20.705795  0.058388   20.71342  
2012            125       110       22.314968  22.55171   22.399623  0.064017   22.383307 
2013            125       110       17.14642   17.455065  17.298333  0.093091   17.2835   
2014            125       110       19.158194  19.442129  19.30186   0.079206   19.297274 
2015            125       110       21.379581  21.521935  21.457719  0.034519   21.460241 
2016            125       110       19.765419  20.014387  19.85365   0.068632   19.836678 
2017            125       110       20.219612  20.376839  20.325914  0.035638   20.333323 
2018            125       110       19.823742  20.091227  19.959012  0.071817   19.955774 
2019            125       110       20.630838  20.932678  20.76556   0.085945   20.755726 
2020            125       110       21.445549  21.752581  21.625045  0.069861   21.621839 
2021            125       110       20.667162  21.026064  20.878482  0.101802   20.888178 
2022            125       110       20.771484  21.144871  20.929036  0.077286   20.930549 
2023            125       110       22.558096  22.839258  22.721764  0.071863   22.729194