Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            274       250       10.767194  10.957129  10.866068  0.057968   10.861823 
2008            274       250       10.42171   10.519516  10.488009  0.02285    10.494984 
2009            274       250       11.063903  11.280258  11.216842  0.047483   11.231016 
2010            274       250       11.175194  11.487226  11.383302  0.07268    11.402613 
2011            274       250       11.442258  11.655807  11.592358  0.03874    11.595484 
2012            274       250       11.091806  11.297903  11.214901  0.05254    11.2215   
2013            274       250       11.702806  11.892871  11.811363  0.044543   11.817806 
2014            274       250       13.718064  14.084678  13.934425  0.072628   13.936306 
2015            274       250       11.497935  11.765677  11.681561  0.050271   11.695065 
2016            274       250       12.105935  12.454355  12.27981   0.079272   12.277855 
2017            274       250       11.904839  12.177903  12.082129  0.058186   12.092016 
2018            274       250       12.861387  13.088484  12.980546  0.047409   12.995194 
2019            274       250       12.407419  12.634742  12.520267  0.052788   12.518919 
2020            274       250       13.503225  13.855774  13.68552   0.096534   13.664742 
2021            274       250       11.556032  12.083871  11.820489  0.128843   11.815839 
2022            274       250       11.400484  11.617678  11.511186  0.046306   11.514855 
2023            274       250       12.792839  13.374774  13.092194  0.137222   13.11421