\begin{table}%t2
  \caption{Mean fraction of galaxies in the redshift range $z=[0.5$--1.2] for
    which $17.5\le I_{AB}\le 24$ among 40 mocks catalogues (serie S1) which
    are complete in stellar mass down to $10^9~M_\odot$, built from the
    Millennium simulation with semi-analytical model of
    \citet{delucia_blaizot2007}}
  \label{tab:completeness2}
%
  %%\centering
\par
  \small
\begin{tabular}{c c}
\hline
\hline
  $\log~(M/M_\odot)$    &   $C$   \\
\hline
  9.0--9.5  & 0.37  \\ 
  9.5--10.0  & 0.70  \\
 10.0--10.5  & 0.93  \\
 10.5--11.0  & 0.99  \\
\hline
     $\ge$9.0    & 0.56 \\
     $\ge$9.5     & 0.79 \\
     $\ge$10.0     & 0.94 \\
     $\ge$10.5     & 1.00 \\
\hline
\end{tabular}
\end{table}