Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            383       355       13.276968  14.231065  13.775054  0.229697   13.784387 
2008            383       355       12.991064  14.096613  13.625372  0.251524   13.643839 
2009            383       355       13.246226  14.355226  13.939295  0.265791   14.003903 
2010            383       355       13.574258  14.49342   14.119619  0.216328   14.147936 
2011            383       355       13.375032  14.318032  13.933551  0.212825   13.975225 
2012            383       355       14.760871  15.716032  15.349582  0.232237   15.39971  
2013            383       355       13.44929   14.304387  13.970888  0.185192   13.990774 
2014            383       355       13.122968  14.354645  13.885751  0.297009   13.948452 
2015            383       355       12.079935  14.098548  13.244186  0.478604   13.326226 
2016            383       355       13.487871  14.828484  14.307399  0.318969   14.382968 
2017            383       355       12.715484  13.648355  13.306642  0.217534   13.362387 
2018            383       355       14.088419  15.604322  15.014289  0.359888   15.096807 
2019            383       355       12.957807  14.069129  13.624267  0.252766   13.670065 
2020            383       355       14.973678  15.480452  15.260966  0.123694   15.267    
2021            383       355       16.185581  16.68371   16.442551  0.113425   16.446806 
2022            383       355       13.614806  15.165452  14.48367   0.373392   14.514646 
2023            383       355       14.810613  15.83987   15.378263  0.224248   15.388516