Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            120       53        18.466867  19.029667  18.800289  0.120975   18.802267 
2008            120       53        15.2893    16.104334  15.747416  0.189772   15.776466 
2009            120       53        18.339567  19.127066  18.794333  0.183933   18.820601 
2010            120       53        19.376167  19.826733  19.643855  0.098837   19.6481   
2011            120       53        18.1429    18.861099  18.57146   0.154876   18.5781   
2012            120       53        16.680834  17.410099  17.118969  0.152739   17.132334 
2013            120       53        18.235666  18.911966  18.639794  0.143205   18.642967 
2014            120       53        17.1315    17.7764    17.505974  0.141083   17.514566 
2015            120       53        20.907801  21.397501  21.232351  0.102659   21.254299 
2016            120       53        18.844767  19.484266  19.229228  0.134674   19.243799 
2017            120       53        18.381966  19.018167  18.772624  0.132435   18.790167 
2018            120       53        18.991066  19.590433  19.359511  0.125705   19.372633 
2019            120       53        18.540234  19.122766  18.891118  0.121988   18.896799 
2020            120       53        21.046467  21.481966  21.339071  0.090993   21.3564   
2021            120       53        16.869133  17.441133  17.220492  0.117561   17.231501 
2022            120       53        18.514277  19.184069  18.921161  0.150977   18.928793 
2023            120       53        18.4697    18.977467  18.794321  0.101672   18.811701