Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            112       58        18.27042   19.057194  18.637283  0.198163   18.633258 
2008            112       58        15.231581  16.419613  15.795291  0.296599   15.786339 
2009            112       58        16.334871  17.610258  16.936554  0.31575    16.92992  
2010            112       58        13.351677  14.422065  13.844568  0.267713   13.833516 
2011            112       58        16.655903  17.757162  17.176018  0.27598    17.168742 
2012            112       58        15.803871  17.179356  16.4487    0.337643   16.439629 
2013            112       58        15.184032  16.846935  15.975902  0.406504   15.964839 
2014            112       58        15.273161  16.868517  16.027221  0.388877   16.013564 
2015            112       58        17.735323  18.99371   18.312485  0.310403   18.302049 
2016            112       58        14.056709  15.859161  14.858079  0.467074   14.83921  
2017            112       58        14.019387  15.620258  14.746584  0.395201   14.73071  
2018            112       58        13.874742  15.128387  14.438949  0.31501    14.426371 
2019            112       58        14.660291  16.234711  15.397987  0.382012   15.384984 
2020            112       58        13.910581  15.124387  14.483869  0.327148   14.500774 
2021            112       58        13.416613  15.037258  14.157709  0.41376    14.148291 
2022            112       58        12.624516  14.130838  13.310503  0.393833   13.301677 
2023            112       58        12.9173    14.2762    13.536091  0.351271   13.524933