Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            125       110       27.683767  27.9284    27.822324  0.06906    27.830817 
2008            125       110       29.239834  29.438232  29.354655  0.057928   29.375816 
2009            125       110       29.4331    29.5201    29.481091  0.01757    29.482683 
2010            125       110       30.363733  30.4587    30.411869  0.030945   30.404349 
2011            125       110       29.552967  29.666666  29.623984  0.033402   29.630567 
2012            125       110       27.977667  28.1392    28.043506  0.027923   28.04555  
2013            125       110       28.8535    28.9674    28.906416  0.027197   28.905167 
2014            125       110       28.9935    29.299967  29.159763  0.084001   29.153934 
2015            125       110       29.977434  30.371134  30.234224  0.106041   30.251717 
2016            125       110       29.416767  29.864     29.662023  0.155251   29.670116 
2017            125       110       28.811234  28.916866  28.860491  0.027939   28.858566 
2018            125       110       29.795067  29.969767  29.880183  0.043694   29.880266 
2019            125       110       29.745934  29.8615    29.826443  0.030513   29.834084 
2020            125       110       29.446899  29.6658    29.598227  0.059741   29.616234 
2021            125       110       28.909401  29.058134  28.995219  0.03739    28.998384 
2022            125       110       29.623133  29.754     29.65973   0.033186   29.646533 
2023            125       110       28.762466  29.0748    28.965171  0.072234   28.97525