\begin{table}%t3
%\centering
\par
\caption{\label{tab:sc}Number counts deduced from stacking.}
\begin{tabular}{lllrr}
\hline\hline\noalign{\smallskip}
Wavelength & $S$ & $\sigma_S$ & $S^{2.5}$.d$N$/d$S$ & $\sigma_{S^{2.5}.{\rm d}N/{\rm d}S}$ \\
\hline\\[-3mm]
$\mu$m & \multicolumn{2}{c}{mJy} & \multicolumn{2}{c}{${\rm gal~Jy}^{1.5}~{\rm sr}^{-1}$} \\ 
\hline
 250 &        6.2 &          0.7 &       19~313 &        7892 \\
 250 &           7.9 &          0.9 &       24~440 &       10~466 \\
 250 &          11.5 &          1.2 &       25~816 &       10~236 \\
 250 &        15.7 &          1.3 &       33~131 &       17~213 \\
 250 &     18.1 &          2.3 &       25~232 &       15~428 \\
 250 &     22.2 &          2.9 &       29~831 &       42~448 \\
\hline     
350 &  5.2 &          0.5 &       13007. &        7343. \\
350 &          6.6 &          0.6 &       14519. &        8434. \\
350 &         10.8 &          1.2 &       59314. &       43418. \\
350 &          9.6 &          1.3 &       44944. &       69505. \\
350 &         12.2 &          1.6 &       13200. &       10044. \\    
\hline
500 &         3.5 &          0.5 &       11842. &        8134. \\
500 &        3.3 &          0.6 &        6115. &        4112. \\
500 &         5.8 &          0.8 &       16789. &       12498. \\
500 &         5.4 &          0.9 &       19338. &       36659. \\
500 &         6.6 &          1.2 &       16526. &       42476. \\
 500 &        6.2 &          1.8 &        5263. &       18087. \\    
\hline	
\end{tabular}
\tablefoot{The not normalized counts can be obtained dividing the $S^{2.5}$.d$N$/d$S$ column by the $S$ column.}
\end{table}