Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            86        13        14.369097  14.774677  14.574529  0.121197   14.592451 
2008            86        13        13.87958   14.294678  14.089278  0.125661   14.097903 
2009            86        13        11.397645  11.967194  11.683888  0.168339   11.719742 
2010            86        13        11.992452  12.325807  12.159824  0.097139   12.190354 
2011            86        13        12.565129  12.966419  12.768035  0.117885   12.801806 
2012            86        13        15.304613  15.627677  15.468551  0.097029   15.481322 
2013            86        13        11.015258  11.333033  11.176613  0.098923   11.168839 
2014            86        13        10.303064  10.904967  10.605213  0.177034   10.649484 
2015            86        13        10.539548  11.234581  10.889906  0.204158   10.944871 
2016            86        13        13.561871  13.899903  13.736367  0.10771    13.722064 
2017            86        13        12.717871  13.199903  12.964127  0.148002   12.965903 
2018            86        13        11.158742  11.629097  11.396561  0.144844   11.393517 
2019            86        13        12.911742  13.340742  13.129303  0.127359   13.154323 
2020            86        13        13.238968  13.624419  13.433811  0.120986   13.421904 
2021            86        13        12.607936  12.978613  12.793821  0.112365   12.796935 
2022            86        13        13.001904  13.508613  13.258144  0.152322   13.277129 
2023            86        13        13.761419  14.058806  13.916136  0.09599    13.902193