\begin{tabular}{ll}
\toprule
{} &                          Fwhm \\
\midrule
11 Hz         &       6.5e-03 ± 3.2e-04 (321) \\
30 Hz         &       9.0e-03 ± 3.6e-04 (288) \\
11 Hz - 30 Hz &  1.0e-02 [-4.7e-03, -5.4e-04] \\
\bottomrule
\end{tabular}