Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            2800      2779      26.467226  27.056742  26.75816   0.139946   26.768354 
2008            2800      2779      27.085064  27.705387  27.458452  0.116805   27.475775 
2009            2800      2779      27.168903  27.739902  27.558791  0.091179   27.564451 
2010            2800      2779      27.843967  28.300516  28.171297  0.066346   28.184967 
2011            2800      2779      27.93429   28.789387  28.461317  0.188975   28.484129 
2012            2800      2779      27.466742  28.018     27.844739  0.117587   27.875195 
2013            2800      2779      27.134451  27.385452  27.253945  0.039205   27.249968 
2014            2800      2779      26.904581  27.382517  27.220665  0.088494   27.229742 
2015            2800      2779      27.668322  27.987806  27.83107   0.054787   27.837322 
2016            2800      2779      27.516226  27.903904  27.771183  0.072766   27.78087  
2017            2800      2779      27.663517  28.133354  27.976149  0.096699   28.001774 
2018            2800      2779      26.684452  26.923548  26.814723  0.059454   26.827452 
2019            2800      2779      27.563709  28.502773  28.067007  0.25892    28.131258 
2020            2800      2779      27.105129  27.503775  27.338993  0.093323   27.324709 
2021            2800      2779      27.777967  28.271967  28.10078   0.101092   28.126839 
2022            2800      2779      28.274872  28.880774  28.62557   0.135777   28.636967 
2023            2800      2779      28.523645  29.176193  28.911384  0.143851   28.938644