Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            57        6         5.893645   5.928161   5.911715   0.013256   5.911435  
2008            57        6         6.500839   6.561613   6.535124   0.021244   6.537226  
2009            57        6         7.369774   7.410451   7.391694   0.01435    7.392565  
2010            57        6         6.937645   6.989677   6.968344   0.017822   6.970032  
2011            57        6         8.473323   8.507677   8.493081   0.012022   8.49442   
2012            57        6         8.631935   8.662484   8.651064   0.011167   8.65321   
2013            57        6         6.512839   6.543516   6.52971    0.010985   6.530274  
2014            57        6         7.902323   7.964      7.938914   0.02095    7.941629  
2015            57        6         8.450032   8.494064   8.472075   0.01807    8.470871  
2016            57        6         8.327548   8.373096   8.353731   0.015394   8.355258  
2017            57        6         6.825839   6.873774   6.850317   0.019828   6.849936  
2018            57        6         6.573613   6.651064   6.615118   0.027398   6.617758  
2019            57        6         7.04629    7.087355   7.071613   0.014292   7.074     
2020            57        6         6.357419   6.434742   6.402882   0.026274   6.40621   
2021            57        6         8.64558    8.749323   8.703887   0.036445   8.706968  
2022            57        6         7.551064   7.610516   7.585263   0.02027    7.587468  
2023            57        6         7.140867   7.227167   7.190706   0.029604   7.19405