\begin{table}%t10
%\centering
\par
\caption{\label{tab:evolSFR}Derived star formation activities needed to explain the observed values
quoted in Table~\ref{tab:mz}, assuming the closed-box model, and $h=0.7$, $\Omega_{{\rm m}}=0.3$ and $\Omega_{\Lambda}=0.7$ cosmology. The values are given in the wide and deep samples, and for two different assumptions: {\it a)} constant star formation rate, {\it b)} exponentially
declining star formation rate (see text). In case~$b$, each value is the instantaneous star formation rate at the specified redshift (see Eq.~(\ref{eq:massevol2})).}
\small 
\par
\begin{tabular}{ccccc}
\hline\hline
Mean redshift & \multicolumn{4}{r}{$\log({\rm SFR}/M_{\star})$}\\
\hline
 & \multicolumn{2}{r}{\emph{wide}} & \multicolumn{2}{r}{\emph{deep}}\\
 & \emph{a} & \emph{b} & \emph{a} & \emph{b}\\
\hline
$0.3$ & $-11.06\pm0.7$ & $-10.93\pm0.7$ & $-11.05\pm0.9$ & $-10.99\pm0.9$\\
$0.6$ & $-10.64\pm0.5$ & $-10.36\pm0.5$ & $-10.51\pm0.4$ & $-10.40\pm0.5$\\
$0.77$ & $-10.73\pm0.4$ & $-10.27\pm0.5$ & $-10.65\pm0.5$ & $-10.53\pm0.5$\\
\hline
\end{tabular}
\end{table}