\begin{table}%t9
\caption{\label{tab9}The group means for the parameters of the GCs of Sample~1.} 
\small%\centering
\par
\begin{tabular}{ccccc}
\hline\hline
No of clusters at the peaks& & &4, 6 & \\
\hline
Variables&Cluster 1&Cluster 2&Cluster 3&Cluster 4\\
\hline
No. of members&37&41&45&12\\
$\langle[{\rm Fe/H}]\rangle$&--0.59&--1.54&--1.69&--1.29\\
$\langle c\rangle$&1.66 & 2.11& 1.21&0.92\\
$\langle R_{\rm c}\rangle$(pc)&2.66&0.59 & 3.86&17.53\\
\hline
\end{tabular}
\end{table}