\begin{table}%t4
\caption{Statistics of the 3 samples displayed in 
Fig.~\ref{figure:U-U}.\label{table:U-U}}
%\centering
\par
\begin{tabular}{lcccc}
\hline \hline 
Sample & Bands & Events & rms & Average \\
\hline 
nearby       & {\it UBV}                & 28 & 0.122 & 0.0008~$\pm$ 0.023\\
intermediate &~$\gme$$\rme$$\ime$ & 10 & 0.033 & 0.009~$\pm$ 0.010 \\
high-$z$       &~$\rme$$\ime$$\zme$ & 17 & 0.156 & 0.039~$\pm$ 0.035 \\
\hline
\end{tabular}
\end{table}