\begin{table}%t3
\caption{\label{tab:masslimnumb}Summary of the four mass volume-limited data samples; {\it Mass} is in units of $\log ({\cal M}_*/({\cal M}_{\odot} \times h_{70}^{-2}))$. }
%\centering
\small
\begin{tabular}{c c c c c }    
\hline\hline \noalign{\smallskip}               
                & Sample M-I  & Sample M-II & Sample M-III & Sample M-IV  \\   
stellar mass range  & \it{Mass} $\geq 10.0 $ & \it{Mass} $\geq 10.3 $ & \it{Mass} $\geq 10.6 $ & \it{Mass} $\geq 10.9 $ \\
    $z$ range   & $0.1\leq z\leq0.45$ & $0.1\leq z\leq0.6$ & $0.1\leq z\leq0.8$ & $0.1\leq z\leq 0.9$ \\                  
\hline                     
All galaxies       &     883    &   914     &  1033    &   491  \\      
Isolated galaxies  &     119    &   141     &   131    &    55  \\
Group galaxies I   &     386    &   355     &   330    &   137  \\
Group galaxies II  &     155    &   165     &   230    &   137  \\
\hline                             
\end{tabular}
\end{table}