\begin{table}%t2
 \caption{Mean values of maximum of standard deviations in $Z$\protect direction
                 for different models averaged from 800 Myr to~1200~Myr.} \label{tab:num_res}
  %\centering
\par
   \begin{tabular}{cccc}
   \hline  \hline
   Model & $\eta_1$ & $\bar{\sigma_{ z}}$ & $\Delta \bar{\sigma_{
z}}$ \\ 
\hline 
   p0 &   0.0 & 142.6 & 16.2 \\
   q0 &   0.1 & 149.2 & 20.6 \\
   r0 &   1.0 & 150.0 & 25.3 \\
   s0 &  10.0 & 104.5 & 20.4 \\ 
\hline   
P0 &   0.0 & 192.5 & 32.3 \\
   Q0 &   0.1 & 174.7 & 30.0 \\
   R0 &   1.0 & 151.4 & 25.6 \\
   S0 &  10.0 & 112.6 & 21.0 \\ \hline
  \end{tabular}
 \end{table}