Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            207       197       28.278517  28.536324  28.474067  0.060173   28.495935 
2008            207       197       27.841806  28.019129  27.948896  0.044658   27.94729  
2009            207       197       28.331324  28.60371   28.525973  0.066982   28.550323 
2010            207       197       29.768839  29.880936  29.854792  0.020941   29.862516 
2011            207       197       29.152935  29.345774  29.28501   0.039506   29.293613 
2012            207       197       28.939838  29.131645  29.042507  0.048662   29.039419 
2013            207       197       27.874065  28.04071   27.958178  0.033434   27.956097 
2014            207       197       27.410162  27.625     27.495748  0.042444   27.492226 
2015            207       197       26.913677  27.031322  26.969443  0.020462   26.967258 
2016            207       197       27.240097  27.511709  27.33874   0.060983   27.326935 
2017            207       197       28.911806  29.227064  29.157492  0.065065   29.178516 
2018            207       197       27.509903  27.660065  27.606247  0.037926   27.620806 
2019            207       197       28.387903  28.797838  28.698714  0.093844   28.742355 
2020            207       197       29.647291  30.165903  29.96269   0.110362   29.993162 
2021            207       197       29.578711  29.965967  29.822169  0.080892   29.834452 
2022            207       197       29.097612  29.488968  29.344748  0.091986   29.367775 
2023            207       197       28.894646  29.634064  29.407741  0.2178     29.487354