Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            274       245       6.423968   7.079484   6.732152   0.169759   6.718226  
2008            274       245       7.215129   7.709936   7.528529   0.143575   7.565806  
2009            274       245       6.827484   7.129161   6.925917   0.062987   6.918452  
2010            274       245       7.891355   8.31813    8.116461   0.108571   8.126678  
2011            274       245       6.768613   7.141581   6.938622   0.097104   6.927484  
2012            274       245       8.410872   8.721484   8.529784   0.065963   8.522323  
2013            274       245       7.692194   7.998065   7.828356   0.072732   7.824258  
2014            274       245       6.605484   6.953322   6.769983   0.086261   6.769548  
2015            274       245       5.973742   6.340322   6.135713   0.072649   6.130516  
2016            274       245       7.633581   7.933677   7.747328   0.064838   7.743161  
2017            274       245       5.826161   6.171806   6.034323   0.071352   6.038968  
2018            274       245       7.788774   8.130838   7.933623   0.079753   7.926484  
2019            274       245       6.815774   7.157613   7.011613   0.084997   7.011871  
2020            274       245       7.441548   8.071968   7.796821   0.167656   7.809581  
2021            274       245       8.296516   8.866516   8.646331   0.157027   8.693839  
2022            274       245       8.022225   8.41958    8.165944   0.095383   8.135323  
2023            274       245       7.947516   8.670096   8.328957   0.198878   8.353742