Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            274       245       11.353     11.821968  11.531898  0.101348   11.521839 
2008            274       245       11.357194  11.664645  11.416748  0.060544   11.399387 
2009            274       245       10.917226  11.124806  10.971033  0.04189    10.961129 
2010            274       245       11.79571   11.993613  11.856981  0.033609   11.851516 
2011            274       245       11.982     12.313516  12.102022  0.060266   12.097194 
2012            274       245       13.172871  13.326936  13.245548  0.028315   13.245355 
2013            274       245       12.412354  12.625194  12.47399   0.049501   12.461839 
2014            274       245       12.385258  12.630451  12.564165  0.042063   12.573903 
2015            274       245       11.533871  11.846871  11.742242  0.069528   11.754935 
2016            274       245       12.686516  12.921419  12.775454  0.041205   12.770742 
2017            274       245       12.638355  12.832968  12.694443  0.040189   12.686742 
2018            274       245       12.060097  12.38371   12.251694  0.061231   12.258871 
2019            274       245       11.85071   12.042     11.916045  0.03424    11.912193 
2020            274       245       12.211129  12.541774  12.370418  0.075625   12.384129 
2021            274       245       13.3       13.642516  13.391919  0.065776   13.378806 
2022            274       245       13.084226  13.239839  13.126935  0.027194   13.121484 
2023            274       245       13.033387  13.563354  13.263515  0.124846   13.254161