\begin{table}%t2[t]
\caption{Logarithm of the suitability index, $\log[\kappa]$, -- see
Eq.~(\ref{equation_kappa}) -- for the study of the age-metallicity degeneracy,
computed for different combinations of common line-strength indices in the
optical range.  For the generation of these numbers we have employed the
predictions of Bruzual \& Charlot (2001) models, for single stellar populations
of 12~Gyr old and solar metallicity. Better diagrams are those for which
$\kappa$ are lower. In this sense, and as a guide for the eye, we have
boldfaced and underlined the 10\% of these numbers with the lowest values.}
\label{table_suitab_indice_indice}
\input{3590.in1}
\end{table}