Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            81        57        8.036567   8.182433   8.132687   0.034942   8.137333  
2008            81        57        9.4138     9.451834   9.440919   0.00933    9.443167  
2009            81        57        8.281167   8.489866   8.410116   0.053372   8.417867  
2010            81        57        9.4699     9.674566   9.579577   0.049764   9.589633  
2011            81        57        8.107483   8.307655   8.229788   0.049982   8.235034  
2012            81        57        11.327666  11.519     11.451629  0.048354   11.462967 
2013            81        57        8.596367   8.7528     8.683534   0.038863   8.691533  
2014            81        57        7.280567   7.361233   7.319169   0.01887    7.3188    
2015            81        57        7.519767   7.599433   7.566332   0.018591   7.5671    
2016            81        57        9.668034   9.799434   9.741693   0.032172   9.741633  
2017            81        57        9.439667   9.572866   9.519645   0.033192   9.5207    
2018            81        57        7.505867   7.659733   7.598089   0.034326   7.599534  
2019            81        57        8.918333   8.969234   8.94176    0.0122     8.9421    
2020            81        57        9.2586     9.429833   9.375257   0.044095   9.383166  
2021            81        57        9.303699   9.6803     9.503252   0.088764   9.511766  
2022            81        57        8.635034   8.7228     8.686612   0.0219     8.688666  
2023            81        57        10.822759  11.141689  11.015612  0.082495   11.024793