\begin{table}%T1
%\centering
\par
\caption{\label{t:m67}
Mean proper motion and standard deviation of M~67 in several bins of magnitude in a circular
field of $1^\circ$ radius resulting from the SEM deconvolution of field and cluster
distributions. $N$ is the number
of stars per bin of magnitude, err$_{\mu_\alpha}$ and err$_{\mu_\delta}$ the median standard PM2000
errors, and P the proportion of cluster stars. The last line gives the statistics for
Tycho2 proper motions for 36 members of the cluster. }
\begin{tabular}{  rrrrrrrrr }
\hline
\hline
$V$ & $N$ & err$_{\mu_\alpha}$ & err$_{\mu_\delta}$ & $P$(\%) & $\mu_\alpha$ & $\mu_\delta$ &
$\sigma_{\mu_\alpha}$ & $\sigma_{\mu_\delta}$ \\[-4.2mm]\\
\hline
$<$12  & 113 & 0.6 & 0.8 & 28.8 & --8.8 & --5.6 & 0.9 & 0.9 \\
12--13 & 202 & 0.4 & 0.4 & 52.1 & --8.6 & --5.5 & 1.1 & 1.1 \\
13--14 & 358 & 0.5 & 0.5 & 48.9 & --8.5 & --5.7 & 1.2 & 1.3 \\
14--15 & 484 & 0.9 & 0.8 & 22.8 & --8.2 & --6.0 & 1.3 & 1.0 \\
\hline
Tycho2 &   36 & 1.9 & 1.9 & -- & --8.7 & --5.9 & 1.8 & 1.7 \\
\hline
\end{tabular}
\end{table}