\begin{table}%t3
\caption{The median values for the  2--8~keV observed flux for 
each luminosity bin in the combined sample.}
\label{medianf2}
\small%\centerline
{
\begin{tabular}{cc}
\hline\hline
% & & & \\[-8pt]
${{\rm Log}~L_{\rm X}}^1$ &     ${f_{\rm X}}^2$      \\
\hline			      
% & & & \\[-8pt]
42.7   & $1.7\times10^{-15}$   \\
43.6   & $5.3\times10^{-15}$   \\
44.5   & $3.1\times10^{-14}$   \\
45.2   & $5.6\times10^{-14}$   \\
\hline
\end{tabular}} 	    
\medskip
$^1$ Logarithm of the median value of 2--8~keV in units of~\lunits.
$^2$~Median value of the 2--8~keV observed flux in units of~\funits.
\end{table}