\begin{table}%t3
\caption{\label{tab3}Summary of variability and X-ray  results in the area with X-ray information.} 
%\centerline
{\small\begin{tabular}{lccccc}
\hline\hline                 
& Galaxies & NELG & BLAGN & NLAGN$^a$ & Total \\    
\hline                        
Variable sources detected in hard X-rays          & 1  & 3  & 42 & 0  & 46 \\
Variable sources not detected in hard X-rays      & 4  & 6  & 5  & 0  & 15 \\
\hline
Total number of variable sources                  & 5  & 9  & 47 & 0  & 61 \\
\hline
Non variable sources detected in hard X-rays      & 10 & 36 & 13 & 15 & 74 \\
Non variable sources not detected in hard X-rays  & 11 & 18 & 5  & 3  & 37 \\
\hline
Total number of non variable sources              & 21 & 54 & 18 & 18 & 111\\
\hline
Total                                             & 26 & 63 & 65 & 18 & 172\\
\hline                                   
\end{tabular}}\medskip
\par
$^a$ NLAGN~=~Narrow Line AGN, reported by \cite{szok04} as high excitation line sources (HEX) and by \cite{trei08} as obscured AGN (OAGN).
%\end{minipage}
\end{table}