Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            817       479       10.631166  10.824833  10.750874  0.045227   10.753866 
2008            817       479       11.110567  11.4169    11.27352   0.080831   11.274933 
2009            817       479       11.031767  11.152133  11.102215  0.033116   11.108233 
2010            817       479       10.817966  11.1332    11.028799  0.076075   11.053766 
2011            817       479       10.751667  10.9943    10.900163  0.057268   10.9147   
2012            817       479       11.178034  11.614367  11.466571  0.115681   11.490233 
2013            817       479       10.2455    10.6419    10.517624  0.080069   10.5342   
2014            817       479       12.6221    13.1855    12.884995  0.146042   12.872933 
2015            817       479       11.674334  12.361334  12.003151  0.165577   11.989266 
2016            817       479       12.569834  12.934934  12.760753  0.103411   12.760233 
2017            817       479       10.405633  11.005967  10.749577  0.15008    10.744634 
2018            817       479       10.5844    11.4717    11.0719    0.216837   11.0699   
2019            817       479       9.810333   10.364     10.166245  0.122897   10.197    
2020            817       479       10.478267  10.636333  10.525101  0.035169   10.5153   
2021            817       479       11.048567  11.702367  11.342252  0.182398   11.3054   
2022            817       479       10.145483  10.459311  10.332271  0.067837   10.348966 
2023            817       479       11.146267  11.773867  11.352154  0.165032   11.2945