Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            81        57        21.993677  22.167582  22.073431  0.043373   22.073355 
2008            81        57        22.506323  22.778709  22.641498  0.070987   22.649548 
2009            81        57        21.967581  22.32329   22.154833  0.095217   22.162903 
2010            81        57        24.568903  24.814291  24.697707  0.058725   24.702387 
2011            81        57        23.431225  23.708517  23.552293  0.068523   23.551033 
2012            81        57        25.138548  25.316742  25.251326  0.050506   25.263161 
2013            81        57        23.203032  23.552387  23.371239  0.088083   23.37513  
2014            81        57        22.906065  23.168064  23.044636  0.066842   23.054743 
2015            81        57        23.825968  23.976322  23.91001   0.041253   23.914871 
2016            81        57        23.892065  24.143806  24.010828  0.063621   24.009903 
2017            81        57        23.006033  23.167452  23.108727  0.039162   23.112679 
2018            81        57        23.504419  23.678839  23.59384   0.045496   23.596903 
2019            81        57        24.875839  25.086742  24.988393  0.054104   24.994097 
2020            81        57        24.803871  25.082001  24.92373   0.066306   24.922388 
2021            81        57        22.689356  23.038322  22.849182  0.083208   22.851322 
2022            81        57        23.041258  23.192484  23.100966  0.034343   23.099451 
2023            81        57        23.956676  24.227419  24.098887  0.068891   24.109097