Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            435       393       10.885645  11.234161  11.087123  0.094252   11.095936 
2008            435       393       10.572774  11.07829   10.837112  0.15194    10.847903 
2009            435       393       11.235806  11.739742  11.550034  0.121334   11.565935 
2010            435       393       11.477129  11.930097  11.75833   0.10169    11.772839 
2011            435       393       11.587516  11.93929   11.805377  0.084789   11.804548 
2012            435       393       11.391032  11.968258  11.716496  0.198317   11.773355 
2013            435       393       11.985516  12.243807  12.171819  0.054394   12.184742 
2014            435       393       13.957871  14.210226  14.098062  0.06642    14.092645 
2015            435       393       11.77258   12.154967  11.98259   0.105027   12.000613 
2016            435       393       12.495322  13.104226  12.815131  0.181181   12.85271  
2017            435       393       12.15129   12.552903  12.351152  0.104499   12.349065 
2018            435       393       13.204162  13.72229   13.509986  0.158574   13.550097 
2019            435       393       12.748871  13.182451  12.998862  0.13606    13.035581 
2020            435       393       13.601291  14.148774  13.952162  0.129169   13.977581 
2021            435       393       12.157064  13.440162  12.844577  0.301551   12.855678 
2022            435       393       11.716678  11.927807  11.854462  0.060974   11.876032 
2023            435       393       13.716774  14.567613  14.213154  0.214095   14.236807