\begin{table}%t3
\caption{Mean properties of the FeK$\alpha$ emission line. Column I: spectral parameter; Column II mean value for the whole sample; Column III: mean value for Seyfert~1; Column IV: mean value for Seyfert~2. Column V: Probability that the parameters of type~I and type~II objects are drawn from the same parent population.
}
\small%\centerline
{
\begin{tabular}{ l c c c c }
\hline
\hline
Parameter &Tot. & Seyfert~1$^{\dagger}$ & Seyfert~2$^{\dagger}$ & $P_{\rm null}$ \\
\hline 
$E_{{\rm FeK}\alpha}^{\dagger}$ &$6.49\pm0.02$& $6.46\pm0.03$ & $6.51\pm0.03$ & 32\% \\ 
$EW_{{\rm FeK}\alpha}^{\ddagger}$ & $448\pm67\phantom{0}$ & $222\pm33\phantom{0}$ & $693\pm195$ &  $\leq$1\% \\ 
\hline
\end{tabular}}
\medskip
$^{\dagger}$ In units of~keV; $^{\ddagger}$ in units of~eV. \label{tab3} 
\end{table}