Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            1819      1715      9.9481     11.9597    11.067038  0.468326   11.0837   
2008            1819      1715      10.817801  12.260433  11.565617  0.344325   11.508367 
2009            1819      1715      9.836766   11.132767  10.519987  0.318546   10.488733 
2010            1819      1715      10.9298    12.433267  11.766321  0.354725   11.743167 
2011            1819      1715      10.131033  11.855967  11.070665  0.394665   11.0292   
2012            1819      1715      11.696767  13.007033  12.439925  0.309761   12.4194   
2013            1819      1715      10.6064    12.2706    11.491235  0.36716    11.473066 
2014            1819      1715      10.512667  12.081233  11.345769  0.378374   11.3359   
2015            1819      1715      9.415167   10.730467  10.120256  0.297519   10.082833 
2016            1819      1715      10.854934  12.1301    11.465586  0.28914    11.389267 
2017            1819      1715      10.191566  11.472266  10.871574  0.282178   10.852567 
2018            1819      1715      10.6157    11.8605    11.299569  0.302228   11.235933 
2019            1819      1715      10.0002    11.581667  10.947371  0.38982    11.0035   
2020            1819      1715      11.603733  12.673966  12.152864  0.248439   12.111633 
2021            1819      1715      12.395166  13.268766  12.842427  0.204635   12.766133 
2022            1819      1715      11.567567  12.711166  12.256154  0.233642   12.253734 
2023            1819      1715      11.0276    12.8658    12.15345   0.443943   12.268733