\begin{table}%t2
\par
\caption{\label{tab2}Statistics of star clusters identified near the regions.}
%\centering
\par
\begin{tabular}{cccrrrrr}
\hline\hline
Region &  No. of clusters & No. of clusters & \multicolumn{5}{c}{Age groups}\\
     &  within 30 arcmin&  with age known & $\le$7.5&7.5$-$8.0&8.0$-$8.5
&8.5$-$9.0&$\ge$9.0\\
\hline
Region 1&     15 &12 & 1 & -- & 7 & 3 & 1 \\
Region 2&      9 & 8 & -- & 4 & 1 & 2 & 1 \\
Region 3&     17 &13 & -- & 3 & 3 & 3 & 4 \\
Region 4&     24 &19 & -- & 2 &11 & 4 & 2 \\
Region 5&     17 &15 & 1 & 1 & 6 & 5 & 2 \\
Region 6&     27 &22 & -- & 4 &11 & 7 & -- \\
\hline
\end{tabular}
\end{table}