Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            38        33        13.291333  13.349133  13.320647  0.014074   13.319433 
2008            38        33        12.6716    12.7523    12.708457  0.025449   12.7065   
2009            38        33        14.2305    14.344633  14.292057  0.032731   14.2991   
2010            38        33        13.2244    13.284166  13.252578  0.018014   13.252501 
2011            38        33        14.1778    14.230634  14.206225  0.014704   14.209666 
2012            38        33        13.901934  13.943967  13.922873  0.013101   13.9232   
2013            38        33        14.657066  14.681666  14.665649  0.005339   14.664967 
2014            38        33        14.025833  14.1608    14.103881  0.037145   14.108534 
2015            38        33        12.677     12.889967  12.796836  0.057895   12.8083   
2016            38        33        14.123134  14.222834  14.181023  0.026304   14.183066 
2017            38        33        14.208633  14.290334  14.254115  0.02226    14.2594   
2018            38        33        14.676933  14.7486    14.717182  0.020053   14.7196   
2019            38        33        13.371933  13.559067  13.471426  0.053512   13.482333 
2020            38        33        13.838767  14.028633  13.923054  0.056599   13.9221   
2021            38        33        15.3993    15.5523    15.452963  0.035535   15.447766 
2022            38        33        13.8395    13.8957    13.869496  0.016947   13.872233 
2023            38        33        12.3944    12.5972    12.498877  0.061382   12.5016