Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            919       837       22.0581    23.044033  22.758969  0.12177    22.779934 
2008            919       837       23.051634  23.799101  23.490801  0.150127   23.494267 
2009            919       837       22.869833  23.653366  23.209315  0.161667   23.195499 
2010            919       837       21.259333  22.352467  22.014891  0.189441   22.049168 
2011            919       837       25.501104  26.352379  25.893847  0.163015   25.858862 
2012            919       837       24.382799  24.851799  24.620938  0.118956   24.641634 
2013            919       837       22.923567  24.053534  23.696139  0.172334   23.709    
2014            919       837       23.030367  23.815666  23.563062  0.117831   23.5721   
2015            919       837       25.512699  26.414066  26.133064  0.15219    26.138901 
2016            919       837       23.8302    24.717733  24.338538  0.157487   24.330633 
2017            919       837       23.496134  23.956133  23.759009  0.068208   23.7423   
2018            919       837       23.813633  24.998466  24.529171  0.186341   24.523933 
2019            919       837       24.174868  24.837     24.609968  0.105449   24.596067 
2020            919       837       26.1061    27.256701  26.672627  0.153133   26.641701 
2021            919       837       24.446466  25.816133  24.985504  0.190641   24.961634 
2022            919       837       24.1047    24.784901  24.433039  0.113099   24.388166 
2023            919       837       25.845242  26.98938   26.412674  0.163803   26.395449