\begin{table}
% \caption{Distribution of envelope slopes}
% \label{tab:slope_dist}
% \begin{tabular}{ccc} \hline
% Age range     & Mean & Fraction ($\alpha<1$) \\ \hline
% 6.0 $<$ log(age) $<$ 7.0  & 1.22 &  0.30 \\
% 7.0 $<$ log(age) $<$ 7.5  & 1.28 &  0.14 \\
% 7.5 $<$ log(age) $<$ 8.0  & 1.28 &  0.15 \\
% 8.0 $<$ log(age) $<$ 9.0  & 1.30 &  0.15 \\ \hline
% \end{tabular}
% \end{table}