\begin{table}%T4
\par
\caption{\label{epidemicw}Correction of $\log W(r,l)$ to $\log 2V_{\rm M}^{\sin i}$. This table gives 
the conversion coefficients and the mean error
for the 26~subsamples (level and resolution). $l$ is the level code (see Table~\ref{levelcodes}). $r$ is the mean velocity resolution in~km~s$^{-1}$.
The full table is available in the electronic version of the journal. }
%\centering
\par
\begin{tabular}{rrrrrrr}
\hline\hline
$l$ & $r$ &$a \pm \sigma_a$ & $ b \pm \sigma_b$ & $\sigma$ &$n$&$N_{\rm s}$\\
\hline
  5&   8&$  1.071\pm  0.009$&$ -0.210\pm  0.023$&  0.044&   928&  2933\\
  1&   8&$  1.187\pm  0.002$&$ -0.543\pm  0.005$&  0.036&  5309&  8952\\
  1&  21&$  1.193\pm  0.005$&$ -0.563\pm  0.012$&  0.043&  1438&  9371\\
   &    &   ...             &  ...              &       &      &      \\
   &    &   ...             &  ...              &       &      &      \\
   &    &   ...             &  ...              &       &      &      \\
\hline
\end{tabular}
\end{table}