\begin{table}%t4
\caption{\label{table-average3}Model residual velocities  averaged on interval $T$~= 40$-$50.}
%\centering
\par
\begin{tabular}{lccccc}
  \hline \hline \noalign{\smallskip}
   Region  &  $\overline{V_R}$ & $\overline{\sigma_R}$ & $\overline{V_\theta}$ &$\overline{\sigma_\theta}$ &  $\overline{n}$\\
             & km s$^{-1}$  &  km s$^{-1}$ &  km s$^{-1}$&  km s$^{-1}$ &   \\
 \hline
Sagittarius &  8.9& 7.4& 0.8&5.7& 69\\
Carina      &  9.1& 7.4&--1.0&6.8&164\\
Cygnus      &  3.9&10.4&11.4&5.7&126\\
Local System&  5.6&12.5& 8.3&6.7&121\\
Perseus     &--15.2&11.1&--1.9&5.5& 50\\
\hline
\end{tabular}
\end{table}