\begin{table}%t2
\caption{\label{median_D_T}Median values of $\log(T_{{\rm b,var}})$ and $D_{\rm var}$.}
\small%\centering
\par
\begin{tabular}{lccc}
\hline
\hline
\noalign{\smallskip}
Type 	  & 	 $N$ 	  & 	 $\log(T_{{\rm b,var}})$ [K] 	  & 	 $D_{\rm var}$ 	  \\
 \noalign{\smallskip} 
\hline 
%\noalign{\smallskip} 
HPQ 	  & 	 30 	  & 	 14.31 	  & 	 15.98 	  \\
 LPQ 	  & 	 30 	  & 	 13.92 	  & 	 11.90 	  \\
 FSRQ       &      60       &      14.19   &      14.61    \\
 BLO 	  & 	 22 	  & 	 13.09 	  & 	 6.25 	  \\
 GAL 	  & 	 5 	  & 	 11.65 	  & 	 2.07 	  \\
 ALL 	  & 	 87 	  & 	 13.94 	  & 	 12.02 	  \\
% \noalign{\smallskip} 
\hline 
\end{tabular}
\end{table}