\begin{table}%T13
\caption{XEST parameter statistics.\label{tab13} }
%\centering
\par
\begin{tabular}{lrrrrr}
\hline
\hline
Parameter                        &Sample$^a$& Median      & Mean     & Std.        &  $N$ \\  
                                     &      &             &          & dev.$^b$    &    \\
\hline
\multicolumn{6}{c}{X-ray parameters} \\
\hline
$\beta^c$                            &  DEM & $-$1.25       & $-$1.49    & 0.95        &  99 \\
$\log T_0^c$ [K]                     &  DEM & 6.90        & 6.90     & 0.28        & 119 \\
$\log T_1^{c,d}$ [K]                 & 2-$T$ & 6.79       & 6.76     & 0.21        &  94 \\
$\log T_2^{c,d}$ [K]                 & 2-$T$ & 7.37       & 7.38     & 0.25        & 105 \\
$\log T_{\rm av}^{e}$ [K]            & DEM  & 7.04        & 7.03     & 0.24        & 123 \\
                                     & 2-$T$ & 7.05       & 7.08     & 0.32        & 125 \\
$\log N_{\rm H}^d$ [cm$^{-2}$]       &  DEM & 21.57       & 21.52    & 0.67        & 123 \\
                                     & 2-$T$ & 21.53      & 21.50    & 0.65        & 123 \\
$\log L_{\rm X}^e$ [erg~s$^{-1}$]    & DEM  & 29.82       & 29.76    & 0.77        & 123 \\
                                     & 2-$T$ & 29.80      & 29.72    & 0.78        & 125 \\
$\log L_{\rm X}/L_*^{e,f}$           & DEM  & $-$3.56       & $-$3.55    & 0.50        & 116 \\
                                     & 2-$T$ & $-$3.56      & $-$3.58    & 0.56        & 118 \\
 \hline
\multicolumn{6}{c}{Fundamental parameters} \\
\hline
$A_{\rm V}$ [cm$^{-2}$]              & all  & 1.46        & 2.80     & 3.38        & 116    \\
		                     & 1    & 10.20	  & 9.52     & 1.93	   & 6	 \\
		                     & 2    & 1.95	  & 3.30     & 3.61	   & 57    \\
		                     & 3    & 0.87	  & 1.36     & 1.56	   & 38   \\
                                     & det  & 1.35        & 2.60     & 3.36        & 97    \\
$\log L_*^{f,g}$ [$L_{\odot}$]       & all  & $-$0.34       & $-$0.46    & 0.82        & 146    \\
		                     & 1    & 0.08        & $-$0.01    & 0.49        & 16    \\
		                     & 2    & $-$0.25	  & $-$0.33    & 0.61        & 60    \\
 		                     & 3    & $-$0.43	  & $-$0.44    & 0.59        & 46   \\
                                     & det  & $-$0.30       & $-$0.33    & 0.71        & 119    \\
$\log({\rm age})^{f,h}$ [Myr]        & all  & 0.39        & 0.38     & 0.46        & 112    \\
		                     & 1    & 0.05        & 0.23     & 0.54        & 9    \\
		                     & 2    & 0.43	  & 0.44     & 0.42        & 52    \\
 		                     & 3    & 0.39	  & 0.32     & 0.35        & 43   \\
$\log({\rm mass})^{f,g}$ [$M_{\odot}$]& all & $-$0.29       & $-$0.37    & 0.43        & 123    \\
		                     & 1    & $-$0.17       & $-$0.23    & 0.22        & 10   \\
		                     & 2    & $-$0.25	  & $-$0.27    & 0.31        & 54    \\
 		                     & 3    & $-$0.39	  & $-$0.40    & 0.34        & 43  \\
$\log(P)^{i}$ [d]                    & all  & 0.69        &  0.64    & 0.28        & 69    \\
		                     & 1    & 0.63        & 0.54     & 0.32        & 10   \\
		                     & 2    & 0.77	  & 0.73     & 0.21        & 35    \\
 		                     & 3    & 0.58	  & 0.56     & 0.33        & 22  \\
$\log(\dot{M})^{j}$ [$M_{\odot}{\rm yr}^{-1}$]  & all  & $-$8.08       &  $-$8.20      & 1.21        & 57    \\
\hline
\multicolumn{6}{l}{}\\ 
\multicolumn{6}{l}{Notes: Only results from {\it XMM-Newton} have been considered.}\\ 
\multicolumn{6}{l}{For multiple detections, parameters were averaged.}\\ 
\multicolumn{6}{l}{$^a$ DEM: from DEM fit; 2-$T$: from 1-$T$ or 2-$T$ fit; all; all objects;}\\ 
\multicolumn{6}{l}{ 1, 2, 3; object types; det = X-ray detected objects.}\\ 
\multicolumn{6}{l}{$^b$ Standard deviation of distribution.}\\ 
\multicolumn{6}{l}{$^c$ Only non-fixed fit parameters for detections considered.}\\ 
\multicolumn{6}{l}{$^d$ Only non-zero values for detections considered.}\\ 
\multicolumn{6}{l}{$^e$ Only detections considered.}\\ 
\multicolumn{6}{l}{$^f$ Only for known $L_*$ above the ZAMS.}\\ 
\multicolumn{6}{l}{$^g$ For multiples, value for primary if available.}\\ 
\multicolumn{6}{l}{$^h$ For multiples, logarithmic average of components if available.}\\ 
\multicolumn{6}{l}{$^i$ Upper limits are adopted as measured values.}\\ 
\multicolumn{6}{l}{$^j$ Average of reported range if at least one non-upper limit given.}\\ 
\end{tabular}
\end{table}