Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            134       88        8.892933   9.165867   9.020802   0.071418   9.020116  
2008            134       88        9.183666   9.371833   9.280296   0.046697   9.28475   
2009            134       88        9.464167   9.605766   9.538152   0.032088   9.541584  
2010            134       88        10.315967  10.471367  10.384364  0.031452   10.379717 
2011            134       88        9.108666   9.3992     9.254534   0.079216   9.264083  
2012            134       88        10.536233  10.778067  10.620886  0.050101   10.619417 
2013            134       88        9.253533   9.487      9.382541   0.042337   9.385617  
2014            134       88        9.729333   9.8208     9.760537   0.015396   9.756983  
2015            134       88        8.570733   8.747334   8.662898   0.035263   8.665617  
2016            134       88        8.744733   8.8769     8.825291   0.024664   8.8288    
2017            134       88        9.075633   9.247033   9.140869   0.043054   9.14145   
2018            134       88        9.372867   9.624166   9.508167   0.046343   9.512067  
2019            134       88        8.7581     9.035033   8.906594   0.060338   8.911617  
2020            134       88        9.201767   9.457334   9.349142   0.070587   9.36285   
2021            134       88        9.702367   9.9273     9.849714   0.056594   9.856     
2022            134       88        10.446667  10.965767  10.733243  0.10079    10.743967 
2023            134       88        9.905066   10.109966  10.008175  0.053042   10.014266