Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            104       66        28.584354  28.742968  28.682741  0.034274   28.681338 
2008            104       66        28.284967  28.45816   28.355374  0.047556   28.33792  
2009            104       66        28.138645  28.256096  28.182462  0.030689   28.176984 
2010            104       66        28.892355  28.966936  28.941798  0.018873   28.947548 
2011            104       66        28.861193  29.02529   28.915765  0.045479   28.902516 
2012            104       66        29.340225  29.459     29.403452  0.029545   29.404451 
2013            104       66        28.569935  28.690226  28.66394   0.023603   28.671048 
2014            104       66        29.335129  29.433033  29.387908  0.020431   29.38063  
2015            104       66        27.999193  28.149935  28.078912  0.031852   28.081661 
2016            104       66        30.386227  30.542807  30.474955  0.04632    30.471435 
2017            104       66        28.69787   29.028677  28.84742   0.073047   28.851694 
2018            104       66        29.592743  29.646612  29.60595   0.011958   29.602435 
2019            104       66        29.566774  29.797646  29.634865  0.056364   29.624209 
2020            104       66        29.603483  29.671064  29.635455  0.016996   29.633855 
2021            104       66        28.310614  28.391935  28.360056  0.023685   28.364758 
2022            104       66        29.459999  29.530193  29.490624  0.015644   29.493322 
2023            104       66        29.180742  29.406355  29.292599  0.066915   29.295726