\begin{table}%t1
\caption{$E_{f, {\rm Smooth}}^{{\rm FD}}$ estimated according to Eq.~(\ref{eq:Ef:FD}).}\label{tab:Ef:FD}
%\centering
\small
 \begin{tabular}{rccc}
 \hline \hline
\noalign{\smallskip}
 \multicolumn{1}{c}{$f$} 
 &
 \multicolumn{1}{c}{$\langle I_{\nu=f}\rangle_{{\rm year}}^{{\rm FD}}$}
 &
 \multicolumn{1}{c}{$\langle Z_{f} \rangle_{{\rm year}}$}
 &
 \multicolumn{1}{c}{$E_f^{{\rm FD}}$}
 \\
 \multicolumn{1}{c}{[GHz]} 
 &
 \multicolumn{1}{c}{[MJy/sr]} 
 &
 \multicolumn{1}{c}{[MJy/sr]} 
 &
 \\
 \hline
 30 & 0.0000 & 0.0006 & 0.001 \\
 44 & 0.0000 & 0.0013 & 0.002 \\
 70 & 0.0000 & 0.0032 & 0.004 \\
100 & 0.0001 & 0.0064 & 0.009 \\
143 & 0.0002 & 0.0129 & 0.018 \\
217 & 0.0012 & 0.0291 & 0.041 \\
354 & 0.0083 & 0.0755 & 0.110 \\
545 & 0.0458 & 0.1751 & 0.262 \\
857 & 0.2742 & 0.4229 & 0.648 \\
 \hline
 \end{tabular}
 \end{table}