\begin{table}%t4
%\centering
\par
\caption {\label{mean.ages}Mean stellar population parameters. Mean ages (2), mean metallicities (3) and [E/Fe] (4) (see Sect.~\ref{deri.para} for an explanation on the parameter derivation).}
\begin{tabular}{l ccc}
\hline\hline
Galaxy name & $\langle \log {\rm age}\rangle$ & $\langle$[Z/H]$\rangle$ & 
$\langle$[E/Fe]$\rangle$ \\ 
\hline
NGC~1169  &   $1.172\pm  0.038$ &$  0.069\pm 0.032$&$ 0.112\pm 0.029$\\
NGC~1358  &   $1.043\pm  0.048$ &$  0.000\pm 0.034$&$ 0.225\pm 0.029$\\
NGC~1433  &   $0.266\pm  0.031$ &$  0.005\pm 0.041$&$ 0.138\pm 0.038$\\
NGC~1530  &   $0.078\pm  0.027$ &$ -0.023\pm 0.050$&$ 0.267\pm 0.073$\\
NGC~1832  &   $0.153\pm  0.015$ &$ -0.184\pm 0.028$&$ 0.002\pm 0.024$\\
NGC~2217  &   $0.344\pm  0.045$ &$  0.644\pm 0.046$&$ 0.336\pm 0.030$\\
NGC~2273  &   $0.241\pm  0.020$ &$  0.064\pm 0.030$&$ 0.111\pm 0.025$\\
NGC~2523  &   $0.530\pm  0.062$ &$  0.313\pm 0.054$&$ 0.136\pm 0.031$\\ 
NGC~2665  &   $0.334\pm  0.076$ &$ -0.606\pm 0.092$&$-0.010\pm 0.076$\\
NGC~2681  &   $0.439\pm  0.029$ &$ -0.602\pm 0.039$&$ 0.015\pm 0.036$\\
NGC~2859  &   $1.022\pm  0.029$ &$ -0.064\pm 0.021$&$ 0.238\pm 0.021$\\
NGC~2935  &   $0.374\pm  0.056$ &$ -0.192\pm 0.059$&$ 0.114\pm 0.052$\\
NGC~2950  &   $1.053\pm  0.025$ &$ -0.311\pm 0.019$&$ 0.114\pm 0.052$\\
NGC~2962  &   $0.920\pm  0.035$ &$  0.029\pm 0.026$&$ 0.135\pm 0.022$\\
NGC~3081  &   $0.950\pm  0.157$ &$ -0.225\pm 0.124$&$-0.060\pm 0.096$\\
NGC~4245  &   $0.774\pm  0.045$ &$ -0.095\pm 0.031$&$ 0.085\pm 0.028$\\
NGC~4314  &   $0.297\pm  0.031$ &$  0.066\pm 0.038$&$ 0.105\pm 0.032$\\
NGC~4394  &   $0.956\pm  0.033$ &$ -0.202\pm 0.024$&$ 0.131\pm 0.025$\\
NGC~4643  &   $0.741\pm  0.013$ &$  0.321\pm 0.009$&$ 0.126\pm 0.006$\\
NGC~5101  &   $0.477\pm  0.021$ &$  0.182\pm 0.213$&$ 0.113\pm 0.015$\\
\hline
\end{tabular}
\end{table}