Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            57        6         3.633677   3.682032   3.661855   0.016409   3.663726  
2008            57        6         2.61371    2.676806   2.648699   0.021687   2.650081  
2009            57        6         2.914968   2.952452   2.936688   0.012897   2.938484  
2010            57        6         4.235936   4.259935   4.248796   0.008486   4.248129  
2011            57        6         3.291806   3.35229    3.326774   0.020742   3.328871  
2012            57        6         5.999645   6.01429    6.00822    0.005006   6.008839  
2013            57        6         3.996032   4.048839   4.027559   0.01803    4.030048  
2014            57        6         2.381194   2.451968   2.422409   0.024058   2.425032  
2015            57        6         1.824903   1.894613   1.867312   0.024355   1.870952  
2016            57        6         4.498258   4.542129   4.524247   0.015066   4.526161  
2017            57        6         3.299968   3.338677   3.322882   0.013161   3.325081  
2018            57        6         3.834968   3.871839   3.857511   0.012814   3.8595    
2019            57        6         2.761581   2.803      2.785597   0.014008   2.787468  
2020            57        6         5.065484   5.102871   5.08671    0.012686   5.088419  
2021            57        6         3.998613   4.077322   4.042694   0.027834   4.044887  
2022            57        6         4.519258   4.584678   4.553677   0.025202   4.554193  
2023            57        6         4.12358    4.175194   4.154715   0.017644   4.157048