Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            42        34        15.3544    15.4462    15.397677  0.02481    15.393983 
2008            42        34        15.491     15.642667  15.56431   0.045514   15.559433 
2009            42        34        15.953466  16.068834  16.033196  0.038028   16.052617 
2010            42        34        15.564834  15.615566  15.591754  0.015028   15.592267 
2011            42        34        16.554241  16.672104  16.615486  0.035427   16.61657  
2012            42        34        15.117133  15.2232    15.157673  0.033978   15.1453   
2013            42        34        16.215733  16.255133  16.241007  0.013541   16.2468   
2014            42        34        16.047367  16.154867  16.083151  0.035209   16.069783 
2015            42        34        17.668234  17.7481    17.705867  0.02503    17.705583 
2016            42        34        16.826033  16.988199  16.888408  0.052182   16.87065  
2017            42        34        16.474833  16.5152    16.499053  0.009417   16.5006   
2018            42        34        16.030167  16.124599  16.089056  0.029966   16.092084 
2019            42        34        16.532467  16.646633  16.575083  0.037019   16.5611   
2020            42        34        16.991333  17.069567  17.042623  0.018076   17.042833 
2021            42        34        16.216934  16.474266  16.347823  0.082191   16.33625  
2022            42        34        16.398367  16.449133  16.433924  0.01539    16.440484 
2023            42        34        14.506897  14.591483  14.539366  0.025783   14.531017