Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            42        34        20.785677  21.020193  20.905575  0.06608    20.902435 
2008            42        34        20.36058   20.525322  20.44711   0.047193   20.444645 
2009            42        34        20.978323  21.108387  21.048219  0.037112   21.047952 
2010            42        34        18.877968  19.006388  18.948088  0.03633    18.950032 
2011            42        34        20.086258  20.33      20.220684  0.066105   20.222726 
2012            42        34        20.421227  20.635645  20.565918  0.059699   20.586823 
2013            42        34        20.716677  20.908356  20.832757  0.049058   20.839065 
2014            42        34        21.784163  21.883097  21.83431   0.027714   21.8335   
2015            42        34        21.65571   21.872225  21.788361  0.052547   21.789742 
2016            42        34        22.233807  22.558935  22.407035  0.089765   22.40842  
2017            42        34        22.339483  22.574581  22.477929  0.065679   22.483629 
2018            42        34        22.404484  22.618807  22.528959  0.062475   22.534806 
2019            42        34        20.478355  20.610193  20.546967  0.036598   20.547581 
2020            42        34        20.826483  21.132225  20.974217  0.09825    20.956565 
2021            42        34        21.144806  21.270515  21.224475  0.03062    21.2335   
2022            42        34        21.373291  21.460354  21.423113  0.024791   21.426291 
2023            42        34        20.457935  20.697742  20.580958  0.071875   20.582387