\begin{tabular}{ll}
\toprule
{} &                          Fwhm \\
\midrule
11 Hz         &       6.7e-03 ± 4.2e-04 (211) \\
30 Hz         &       9.9e-03 ± 5.0e-04 (183) \\
11 Hz - 30 Hz &  1.0e-02 [-6.2e-03, -4.7e-04] \\
\bottomrule
\end{tabular}
