Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            310       302       24.120636  24.236187  24.172428  0.040345   24.150314 
2008            310       302       23.770092  23.867098  23.809639  0.023571   23.801661 
2009            310       302       23.948566  24.059164  24.013361  0.0291     24.020505 
2010            310       302       23.513716  23.594954  23.546945  0.021223   23.543688 
2011            310       302       23.818138  24.18169   24.022848  0.106019   24.018947 
2012            310       302       24.060549  24.258745  24.159395  0.051662   24.158844 
2013            310       302       23.333389  23.572872  23.441689  0.066459   23.435081 
2014            310       302       22.676676  23.036449  22.827688  0.109331   22.804889 
2015            310       302       23.776184  23.886183  23.823567  0.025754   23.821653 
2016            310       302       24.015333  24.210062  24.105776  0.053286   24.097645 
2017            310       302       24.207783  24.348806  24.261467  0.026614   24.26087  
2018            310       302       23.530687  23.671     23.590025  0.029469   23.587175 
2019            310       302       23.410885  23.54439   23.458572  0.023887   23.458195 
2020            310       302       24.087229  24.335911  24.217758  0.077743   24.199306 
2021            310       302       23.877476  24.447498  24.215924  0.17267    24.213674 
2022            310       302       23.549971  23.665207  23.594052  0.028238   23.585003 
2023            310       302       24.126234  24.367785  24.26984   0.048353   24.270998