Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            125       110       20.441742  20.687515  20.602242  0.068322   20.624968 
2008            125       110       17.882225  18.181484  18.015833  0.069524   18.028968 
2009            125       110       19.066904  19.419968  19.197189  0.090058   19.182484 
2010            125       110       16.293741  16.751484  16.462069  0.102042   16.443694 
2011            125       110       18.745773  19.056387  18.884445  0.074099   18.889081 
2012            125       110       19.214291  19.59342   19.373717  0.103411   19.363371 
2013            125       110       19.207226  19.716452  19.433752  0.126178   19.426499 
2014            125       110       17.515226  18.242418  17.741387  0.19392    17.680017 
2015            125       110       20.896645  21.441807  21.080606  0.127634   21.06071  
2016            125       110       19.959709  20.377226  20.136195  0.114716   20.135984 
2017            125       110       19.507677  20.102581  19.74044   0.148587   19.741484 
2018            125       110       17.136774  18.009031  17.482735  0.202784   17.444387 
2019            125       110       18.90571   19.550774  19.199946  0.162009   19.1965   
2020            125       110       17.60084   18.242193  17.86996   0.161373   17.845646 
2021            125       110       20.262032  20.506548  20.400836  0.054038   20.401226 
2022            125       110       19.59387   20.100193  19.812754  0.131845   19.806436 
2023            125       110       17.622833  18.326599  17.89306   0.172252   17.871217