\begin{table}%t4
%\centering
\par
\caption{\label{tab4}Same as table 3 for the EROS experiment.}
\begin{tabular}{lrrrrrrrrrrrrr}
\hline  \hline \noalign{\smallskip}
\multicolumn{1}{c}
{\ } & \multicolumn{4}{c}{Canonical thick disk} 
& \multicolumn{4}{c}{Metal-weak thick disk}\\
\hline 
Magnitude                                          & 17.5    & 22.5    & 27.5    & 30.0    & 17.5    & 22.5    & 27.5    & 30.0    \\
\cline{2-5} 
\cline{6-9}
$\langle N_{\rm WD}\rangle$                        & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ \\
$\langle N_{\rm RD}\rangle$                        & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ & $0\pm1$ \\ 
$\langle m_{\rm WD} \rangle$ $(M/M_{\sun})$        & 0.629   & 0.636   & 0.651   & 0.746   & 0.584   & 0.595   & 0.619   & 0.604   \\
$\langle m _{\rm RD}\rangle$ $(M/M_{\sun})$        & 0.200   & 0.221   & 0.106   & 0.080   & 0.325   & 0.177   & 0.085   & 0.076   \\ 
$\langle\eta\rangle$                               & 0.297   & 0.425   & 0.667   & 0.999   & 0.394   & 0.438   & 0.667   & 0.999   \\  
 $\langle\mu\rangle\;(''~{\rm yr}^{-1})$          & 0.005   & 0.004   & 0.004   & 0.006   & 0.010   & 0.009   & 0.007   & 0.008   \\  
$\langle d\rangle$ (kpc)                           & 3.37    & 4.08    & 4.41    & 3.73    & 1.68    & 1.95    & 2.55    & 2.09    \\ 
$\langle V_{\rm  tan}\rangle\;({\rm km~s}^{-1})$  & 87      & 88      & 94      & 98      & 83      & 85      & 86      & 77      \\ 
$\langle\hat{t}_{\rm E}\rangle $ (d)               & 137     & 141     & 149     & 140     & 110     & 112     & 141     & 110     \\
$\langle\tau/\tau_0\rangle$                        & 1.360   & 1.214   & 0.529   & 0.083   & 1.224   & 0.546   & 0.308   & 0.015   \\ 
\hline
\end{tabular}
\end{table}