\begin{table}%t3
%\centering
\par
\caption {Average properties of the radio power, $\log~ (P)$, for galaxies in the complete AMIGA sample and for the 1.4~GHz radiocontinuum emission of the UGC-SF sample (Condon et~al. \cite{condon02}).\label{tab_radio_lum}}
\begin{tabular}{lllll}
\hline
\hline
Frequency  &  Mean $\log~(P)$  & Median $\log~(P)$ & $N_{\rm{gal}}$ & $N_{\rm{det}}$ \\
       & (W~Hz$^{-1}$)  & (W~Hz$^{-1}$) &\\
\hline
CIG/325 MHz    &  $20.03\pm 0.11$ & 22.24 &    278  & 37 \\
CIG/1.4 GHz    &  $20.11\pm 0.10$   & 21.59  &   719   & 311  \\
CIG/4.8 GHz    &  $18.54\pm 0.11$  & 21.53 &   691   & 12\\
UGC-SF/1.4 GHz           & $21.61\pm 0.62$  & 21.65  & 3136  & 2815 \\
\hline
\end{tabular}
\end{table}