Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            275       142       28.354967  28.665323  28.543711  0.088964   28.556968 
2008            275       142       28.596096  28.738451  28.676863  0.035194   28.676    
2009            275       142       28.227451  28.496807  28.442452  0.05405    28.464726 
2010            275       142       28.882     29.100098  29.057124  0.039267   29.062549 
2011            275       142       29.06942   29.383839  29.252776  0.080453   29.255952 
2012            275       142       29.390259  29.632904  29.56711   0.061164   29.59171  
2013            275       142       28.534225  28.65729   28.636522  0.021954   28.638032 
2014            275       142       29.027161  29.294193  29.204642  0.057572   29.208    
2015            275       142       28.692549  28.806194  28.777915  0.023188   28.783403 
2016            275       142       29.946806  30.33313   30.266936  0.075971   30.291806 
2017            275       142       29.363356  29.638775  29.61031   0.052181   29.631435 
2018            275       142       29.381838  29.703711  29.579176  0.077287   29.582935 
2019            275       142       29.938097  30.293032  30.238981  0.064306   30.255806 
2020            275       142       29.427355  29.82671   29.745077  0.088557   29.774371 
2021            275       142       28.301807  28.710838  28.590883  0.105735   28.616952 
2022            275       142       29.354839  29.708677  29.584885  0.08526    29.600258 
2023            275       142       29.384064  29.641258  29.527151  0.0849     29.54979