Year            Count     Valid     Min        Max        Mean       Stdev      Median
2007            126       60        13.330291  14.251387  13.870364  0.22414    13.898919 
2008            126       60        11.866226  12.879032  12.465023  0.235661   12.490645 
2009            126       60        12.08742   12.890742  12.561106  0.197203   12.590742 
2010            126       60        8.108097   9.360484   8.859238   0.284164   8.88492   
2011            126       60        9.132774   10.060516  9.669509   0.238269   9.695     
2012            126       60        13.080032  14.002709  13.662208  0.185695   13.68308  
2013            126       60        12.492484  13.574129  13.134424  0.255549   13.165162 
2014            126       60        10.193903  11.498871  10.988763  0.281667   11.002677 
2015            126       60        10.69958   12.010516  11.516384  0.276358   11.534919 
2016            126       60        12.634129  13.644516  13.259289  0.205584   13.283097 
2017            126       60        13.013484  14.115678  13.717353  0.218836   13.763177 
2018            126       60        7.717194   8.988774   8.476078   0.290957   8.501726  
2019            126       60        12.268709  13.182355  12.84528   0.196375   12.854435 
2020            126       60        12.834871  13.869839  13.488533  0.212826   13.510984 
2021            126       60        11.389322  12.307677  11.970966  0.185295   11.994339 
2022            126       60        12.563065  13.486387  13.156678  0.183727   13.183919 
2023            126       60        11.170387  12.440162  11.980153  0.258325   12.008823