\begin{table}%t4
\caption{\label{tvar}Highly variable sources at 3.6~cm.}
%\centerline
{\begin{tabular}{lccc}
\hline\hline
&2000 Obs.& 2004 Obs.&  Variability\\
& $S_{\nu}~$(3.6 cm)& $S_{\nu}~$(3.6 cm)& with respect\\
Source& (mJy)& (mJy)&   to 2004\\
\hline
VLA 3&  $0.38\pm0.07$&   	$1.86\pm0.07$&	\phb79\%    ($\sim$$21\sigma$)\\
VLA 6&  $<$$0.25^{a}$&		$0.41\pm0.05$&  $>$39\%     ($>$$3\sigma$)\\
\hline
\end{tabular}}
\medskip
$^{a}$ The upper limit for non-detected sources is 4$\sigma$.
\end{table}