Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            126       60        15.171645  15.880903  15.65062   0.14066    15.689161 
2008            126       60        16.118517  16.672871  16.483123  0.115625   16.502564 
2009            126       60        13.749161  14.435935  14.179258  0.152155   14.18792  
2010            126       60        11.425581  11.959742  11.775941  0.107277   11.790629 
2011            126       60        15.369645  15.828516  15.682014  0.091818   15.698807 
2012            126       60        17.798193  18.225775  18.106024  0.090502   18.116532 
2013            126       60        12.724451  13.719322  13.373614  0.19891    13.401984 
2014            126       60        10.923097  12.091032  11.639592  0.242392   11.660323 
2015            126       60        12.136452  13.192871  12.800625  0.21489    12.824435 
2016            126       60        16.218033  16.880741  16.672399  0.133375   16.699758 
2017            126       60        15.573387  16.376516  16.065407  0.164892   16.098613 
2018            126       60        14.709774  15.419258  15.173384  0.149939   15.192532 
2019            126       60        15.041645  15.87671   15.552149  0.175131   15.565984 
2020            126       60        16.389355  16.976387  16.802029  0.116918   16.838178 
2021            126       60        15.226678  15.513355  15.41108   0.0569     15.423952 
2022            126       60        15.754807  16.446096  16.207592  0.137699   16.234403 
2023            126       60        17.625774  18.079323  17.962028  0.101405   17.978