Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            65        46        19.842903  20.047226  19.949941  0.070387   19.973855 
2008            65        46        17.427839  17.508904  17.474519  0.0191     17.475806 
2009            65        46        16.906452  17.058838  16.978898  0.039293   16.974339 
2010            65        46        17.844227  18.022936  17.956861  0.041372   17.965419 
2011            65        46        17.769356  17.893839  17.835524  0.033696   17.846145 
2012            65        46        18.264645  18.356646  18.318961  0.023444   18.319435 
2013            65        46        18.086128  18.141001  18.115523  0.014254   18.115113 
2014            65        46        18.370323  18.519741  18.449686  0.040193   18.449291 
2015            65        46        17.309839  17.476774  17.402103  0.040928   17.405016 
2016            65        46        18.396967  18.472548  18.443255  0.01669    18.442    
2017            65        46        19.734356  19.861032  19.803054  0.040731   19.812468 
2018            65        46        19.644646  19.729517  19.694898  0.018397   19.696871 
2019            65        46        18.459644  18.537838  18.507652  0.01892    18.509645 
2020            65        46        18.558807  18.753452  18.673361  0.048643   18.677403 
2021            65        46        19.531742  19.662161  19.616834  0.032391   19.62142  
2022            65        46        16.806452  17.001774  16.934418  0.045882   16.946274 
2023            65        46        17.794775  18.018064  17.914393  0.056014   17.915112