\begin{table}%t7
\caption{Distribution  of the star formation rate for the FSM and 
   the IRAS sample (computed from the corrected H$\alpha$~emission 
   flux and from the total IR~luminosity;  
    only  objects classified as "HII region-like''  in Sect.~4.3 have been used). For comparison, the {\it SFR} inferred from the~IR is also shown for 
   the sub-samples with a measurable H$\alpha$~line. } \label{list_SFR}
%\centering
\par
 \begin{tabular}{lcccc}
\hline  \hline
   \multicolumn{5}{l}{Star formation rates ($M_\odot /$yr) from 
   corrected H$\alpha$ flux}\\
   \hline
   &sample size&average&min&max\\
   FSM&20&9.7&0.3&39\\
   IRAS&20&37&0.5&440\\
   \hline  \hline
   \multicolumn{5}{l}{Star formation rate ($M_\odot /$yr) from IR luminosity}\\
   \hline	
   &sample size&average&min&max\\
   FSM&21&41&0.5&990\\
   \hspace{0.2cm} (with H$\alpha$)&20&41&0.5&320\\	
   IRAS&27&65&2.6&1300\\
   \hspace{0.2cm} (with H$\alpha$)&20&106&5.2&340\\	
   \hline
 \end{tabular}
 \end{table}