\begin{table}%T12
\caption{\label{tab:correlations}Spearman-rank correlations among spectral parameters of the
soft excess tested models and X-ray parameters (luminosity and $\Gamma_{\rm 2-12}$). The displayed values are
($r_{\rm s}$, $P_{\rm s}$), where $r_{\rm s}$ is the rank correlation coefficient and $P_{\rm s}$ is the
significance probability. The significant (i.e. $>$95\%) correlations
are marked in boldface (see text for details).}
%\centering
\par
\begin{tabular}{c c c c c c}
\hline 
\hline 
              &  & $kT_{\rm BB}$	 & 	$kT_{\rm DiskBB}$ & 	$kT_{\rm Brem}$ &  $\Gamma_{\rm Soft}$\\
\hline      
$L_{\rm 0.5-2~keV}$	 &  & 	(0.46, {\bf 97.9}) & 	($-$0.26, 82.4) & 	(0.41, {\bf 96.8}) & 	($-$0.15, 52.1)\\
\par
$L_{\rm 2-10~keV}$	 &  & 	(0.48, {\bf 98.5}) & 	($-$0.22, 73.1) & 	(0.44, {\bf 98.2}) & 	($-$0.23, 73.7)\\
\par
$R_{\rm S/P}^{\rm 0.5-2}$	 &  & 	(0.04, 13.3) & 		($-$0.09, 35.1) & 	($-$0.07, 29.0) & 		(0.39, 94.7)\\
$R_{\rm S/P}^{\rm 0.5-10}$	 &  & 	(0.12, 41.2) & 		($-$0.11, 42.3) & 	($-$0.10, 39.9) & 		(0.45, {\bf 97.4})\\
$\Gamma_{\rm 2-12}$          &  &  (0.26, 78.1)                &    ($-$0.20, 70.8)                      & ($-$0.07, 27.6)                & (0.33, 89.4)      \\
 \hline
\end{tabular}
\end{table}