Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            65        46        13.898291  14.300613  14.040182  0.101038   14.025597 
2008            65        46        13.337129  13.797322  13.508586  0.115148   13.499242 
2009            65        46        13.709742  14.245032  13.951314  0.156892   13.972016 
2010            65        46        14.02429   14.313452  14.121051  0.072755   14.109274 
2011            65        46        14.816548  15.123516  14.964731  0.091198   14.985242 
2012            65        46        15.728935  15.969742  15.824495  0.064954   15.824016 
2013            65        46        13.611516  13.937549  13.717618  0.079561   13.708564 
2014            65        46        13.702065  13.990742  13.815483  0.07983    13.816581 
2015            65        46        14.427     14.703161  14.527523  0.072116   14.521162 
2016            65        46        13.262968  13.600742  13.384457  0.085496   13.374452 
2017            65        46        13.960355  14.272097  14.089048  0.085972   14.091258 
2018            65        46        14.778548  15.11671   14.913129  0.08916    14.908145 
2019            65        46        14.264065  14.669065  14.428082  0.112803   14.427177 
2020            65        46        12.758032  13.167161  12.916431  0.110747   12.911903 
2021            65        46        14.710065  14.983193  14.79147   0.064518   14.775855 
2022            65        46        13.542484  13.826355  13.64251   0.073194   13.632    
2023            65        46        14.971065  15.445323  15.154537  0.123036   15.153903