Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            117       54        16.074677  16.566193  16.359606  0.127884   16.382532 
2008            117       54        13.11258   13.844097  13.529621  0.192162   13.56129  
2009            117       54        13.829678  14.656581  14.306785  0.213867   14.343613 
2010            117       54        11.757322  12.460838  12.175826  0.180899   12.211903 
2011            117       54        14.594742  15.409162  15.084968  0.207767   15.12321  
2012            117       54        13.07142   14.052161  13.617489  0.259267   13.655403 
2013            117       54        13.515903  14.420871  14.024282  0.238371   14.060548 
2014            117       54        12.812903  13.728678  13.344221  0.232516   13.385597 
2015            117       54        16.075516  16.82687   16.55479   0.193771   16.58892  
2016            117       54        14.001645  15.00158   14.624387  0.252197   14.672758 
2017            117       54        12.633451  13.49771   13.157733  0.2165     13.192855 
2018            117       54        12.294194  13.162484  12.815155  0.22263    12.846871 
2019            117       54        13.55829   14.376484  14.064213  0.209685   14.110984 
2020            117       54        13.230064  14.144613  13.783535  0.225731   13.821258 
2021            117       54        14.887129  15.643064  15.368882  0.189151   15.40742  
2022            117       54        13.460548  14.408096  14.05113   0.241705   14.097548 
2023            117       54        12.922934  13.774134  13.448038  0.213006   13.48635