\begin{table}%t5
\par
\caption{The proper motions by linearly-fitting to the separations of the jet components in Fig.~\ref{fig:4} by assuming the identifications of these jet components. See text for details. \label{tab:5}} 
\begin{tabular}{ccccccccc}
\hline\hline
&J05-C4/B05-C3 &J05-C3/a/B05-C2 &J05-C2/B05-C1&J05-C1/b&J05-B6/J01-B6&J05-A1/c&J05-B4/J01-B4&J05-A2/d\\
\hline
$\mu\ ({\rm
mas~yr^{-1}})$&0.023~$\pm$~0.003&0.093~$\pm$~0.006&0.17~$\pm$~0.01&0.069~$\pm$~0.01&0.83~$\pm$~0.04&--0.088~$\pm$~0.016&0.72~$\pm$~0.04&--0.11~$\pm$~0.01\\ 
$\beta_{\rm app}$&0.62~$\pm$~0.08&2.49~$\pm$~0.16&4.55~$\pm$~0.27&1.85~$\pm$~0.27&22.23~$\pm$~1.07&--2.36~$\pm$~0.43&19.28~$\pm$~1.07&--2.95~$\pm$~0.27\\\hline
\end{tabular}
\end{table}