\begin{table}%t13
%\centering
\par
\caption{\label{tab:BBHrad}Variability information and, if available, timescales concerning CJF sources already considered to be BBH candidates.}
\begin{tabular}{l l l l l l l l l l l l l l}
\hline\hline \noalign{\smallskip}
{Source} & {Type} & ${z}$ &{Var}${_{\rm Radio}}$	&{Var}${_{\rm IR}}$	 &{Var}${_{\rm Opt}}$ &{Var}${_{\rm X}}$  &{Var}${_{\gamma}}$ \\
&		&		    & (yr)		&		&  (yr)		           & (days)	& (days)	    \\
\hline
0316+413&	G	&0.018		&9.7		&		&			           &	  	&       	\\
0402+379&	G	&0.055		&yes		&		&			           &	  	&       	\\
0716+714&	BL	&0.3		&5.4--15		&yes	&3.3		           &	  	&yes    	\\
1101+384&	BL	&0.0308		&3.7--8.0 	&yes	&6.2		           &62	    &      	 	\\
1641+399&	Q	&0.595		&5.1, 3.5--4	&yes	&5.6, 11.4, 10.1, 1.9  &	    &      	 	\\
1652+398&	BL	&0.03366	&6.8--12.3	&yes	&yes               	   &23	    &23.2  	 	\\
1803+784&	BL 	&0.6797		&7.0--11.3	&		&0.003			           &	    &      	 	\\
1928+738&	Q	&0.302		&7.7--8.2	&		&yes		           &	    &      	 	\\
2200+420&	BL	&0.0686		&3.9--7.8	&yes	&7.8, 0.6, 0.88, 14, 7.7  &	    &      	 	\\
\hline
\end{tabular}
\tablefoot {Columns~(1)--(3) as before, Col.~(4) in the radio, Col.~(5) in the infrared, Col.~(6) in the optical, Col.~(7) in the X-rays, and Col.~(8) in the $\gamma$-rays. For references, see previous tables.}
\vspace*{4mm}
\end{table}