Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            309       273       5.594581   6.591129   6.143517   0.215852   6.110613  
2008            309       273       3.283807   3.934548   3.650737   0.150917   3.641129  
2009            309       273       3.816613   4.64171    4.313337   0.185865   4.307677  
2010            309       273       4.541903   5.001548   4.780821   0.102002   4.774387  
2011            309       273       4.328355   4.941      4.663822   0.149896   4.662387  
2012            309       273       5.906968   6.719193   6.377529   0.168858   6.369516  
2013            309       273       7.08529    7.526678   7.325659   0.104323   7.321355  
2014            309       273       3.290839   4.196677   3.803698   0.206684   3.805839  
2015            309       273       5.249774   6.328742   5.960211   0.23748    5.990968  
2016            309       273       5.491807   6.199097   5.896739   0.168896   5.896581  
2017            309       273       5.773774   6.770161   6.380176   0.229107   6.388516  
2018            309       273       3.083548   4.86471    4.213929   0.393707   4.24629   
2019            309       273       3.712322   4.578032   4.19554    0.198341   4.191161  
2020            309       273       5.143      5.728968   5.481039   0.135353   5.482807  
2021            309       273       4.818871   5.590806   5.307675   0.174246   5.320677  
2022            309       273       5.050355   6.644871   6.10281    0.343238   6.127032  
2023            309       273       5.881322   6.376678   6.158189   0.105978   6.162323