Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            919       837       22.448433  23.065933  22.880204  0.155473   22.919067 
2008            919       837       21.168633  21.823133  21.61527   0.156163   21.6409   
2009            919       837       23.457867  24.108566  23.860571  0.156651   23.874567 
2010            919       837       22.616333  23.170467  22.988409  0.129316   23.011734 
2011            919       837       21.929333  22.690567  22.3637    0.154115   22.333233 
2012            919       837       21.091333  21.711466  21.480339  0.132669   21.515966 
2013            919       837       23.191334  24.016033  23.738401  0.207076   23.756933 
2014            919       837       21.052834  21.950899  21.645238  0.197485   21.684534 
2015            919       837       24.948534  25.844     25.468162  0.192059   25.501034 
2016            919       837       21.810133  22.576967  22.343982  0.146883   22.373867 
2017            919       837       22.436167  23.258934  22.976136  0.179501   22.9741   
2018            919       837       24.085766  24.908934  24.608146  0.207355   24.631933 
2019            919       837       23.610634  24.906534  24.466124  0.274854   24.541666 
2020            919       837       24.254333  24.7834    24.615424  0.131035   24.642    
2021            919       837       21.914867  22.8981    22.483249  0.220188   22.525267 
2022            919       837       24.055897  24.890759  24.593379  0.216896   24.63238  
2023            919       837       23.0529    24.012367  23.649694  0.223921   23.6691