\begin{table}%t1 \caption{\label{table:1}Summary of the results of the spectral fitting.} %\centering \small \begin{tabular}{c c c c c c c c c c c c c c c c c c } \hline\hline\noalign{\smallskip} Model & $N_{{\rm total}}$ \\ (1) & (2) \\ \hline $phabs \times powerlaw$ & 430 (88.3\%) \\ $phabs \times (zphabs \times powerlaw)$ & 17 (3.5\%)\\ $phabs \times (zbbody + powerlaw)$ & 38 (7.8\%)\\ $phabs \times (zbbody + zphabs \times powerlaw)$ & 2 (0.4\%)\\ \hline \end{tabular} \tablefoot {(1) XSPEC model definition: $powerlaw$: simple photon power-law. $zphabs$: rest-frame photoelectric absorption. $zbbody$: a~redshifted blackbody spectrum. All models include Galactic absorption ($phabs$). (2)~Number and fraction of objects best fitted with the indicated model.} \end{table}