Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            38        33        11.714774  11.809677  11.768081  0.026252   11.770935 
2008            38        33        12.392     12.47971   12.445102  0.023393   12.445678 
2009            38        33        12.366033  12.468839  12.427616  0.02623    12.427774 
2010            38        33        13.010033  13.089161  13.053392  0.022007   13.057903 
2011            38        33        13.741936  13.794678  13.766306  0.014628   13.767161 
2012            38        33        11.519968  11.664032  11.594093  0.041395   11.600387 
2013            38        33        13.321258  13.345839  13.333325  0.005999   13.332807 
2014            38        33        15.610354  15.661484  15.641867  0.013434   15.640258 
2015            38        33        14.071903  14.193097  14.145584  0.032933   14.140225 
2016            38        33        12.769032  12.87571   12.831092  0.027481   12.830968 
2017            38        33        12.360484  12.498677  12.437485  0.035942   12.439806 
2018            38        33        12.353968  12.534064  12.457091  0.048931   12.463258 
2019            38        33        13.037097  13.193129  13.12774   0.041756   13.130677 
2020            38        33        14.094322  14.183774  14.140705  0.025772   14.144226 
2021            38        33        12.951484  12.991936  12.974521  0.011994   12.977258 
2022            38        33        12.308935  12.474194  12.410518  0.044463   12.402387 
2023            38        33        13.576581  13.663484  13.618658  0.025681   13.61958