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\begin{document}
 
  
  \begin{tabular}{l c c c c c}
    \hline
    Data sample & 300 $\text{\,fs}$  & 350 $\text{\,fs}$  & 400 $\text{\,fs}$  & 450 $\text{\,fs}$  & 500 $\text{\,fs}$  \\
    \hline
2012 ( $\sqrt{s}$ \xspace=\;\;8 $\text{\,Te\kern -0.1em V}$ \xspace) & 22 $\pm$ 4~\, & 20 $\pm$ 3~\, & 18 $\pm$ 3~\, & 16 $\pm$ 2~\, & 15 $\pm$ 2~\,\\
2016 ( $\sqrt{s}$ \xspace=13 $\text{\,Te\kern -0.1em V}$ \xspace) & 8.4 $\pm$ 0.9 & 7.5 $\pm$ 0.8 & 6.8 $\pm$ 0.8 & 6.3 $\pm$ 0.7 & 5.9 $\pm$ 0.6\\
2017 ( $\sqrt{s}$ \xspace=13 $\text{\,Te\kern -0.1em V}$ \xspace) & 7.7 $\pm$ 0.7 & 6.8 $\pm$ 0.7 & 6.2 $\pm$ 0.6 & 5.7 $\pm$ 0.6 & 5.4 $\pm$ 0.5\\
2018 ( $\sqrt{s}$ \xspace=13 $\text{\,Te\kern -0.1em V}$ \xspace) & 6.9 $\pm$ 0.6 & 6.2 $\pm$ 0.6 & 5.6 $\pm$ 0.5 & 5.2 $\pm$ 0.5 & 4.9 $\pm$ 0.4\\    
\hline
\end{tabular}
\end{document}
