\begin{table}%t4
\caption{Fractions of Fe contained in dust, $f_{{\rm Fe},j}$, for the 
main components~23$-$28 and different models. The results for models~A and~B do not depend on the exponent~$\epsilon_X$.}\label{tb:ffe}
%\centering
\small
\begin{tabular}{@{}llllll@{}}
\hline
\hline
No.\rule[-5pt]{0pt}{15pt}
& $A$
& $B$
& $E0$
& $E1$
& Mean
\\
\hline
23\rule{0pt}{10pt}
& $0.98\pm0.01$
& $0.95\pm0.01$
& $0.95\pm0.01$
& $0.97\pm0.01$
& $0.96\pm0.02$
\\
24
& $0.98\pm0.01$
& $0.94\pm0.01$
& $0.94\pm0.01$
& $0.96\pm0.01$
& $0.96\pm0.02$
\\
25
& $0.56\pm0.12$
& $0.54\pm0.10$
& $0.41\pm0.13$
& $0.42\pm0.14$
& $0.48\pm0.08$
\\
26
& $0.86\pm0.07$
& $0.81\pm0.06$
& $0.77\pm0.08$
& $0.80\pm0.09$
& $0.81\pm0.04$
\\
27
& $0.92\pm0.03$
& $0.86\pm0.03$
& $0.84\pm0.05$
& $0.87\pm0.05$
& $0.87\pm0.03$
\\
28
& $0.22\pm0.16$
& $0.21\pm0.13$
& $0.15\pm0.11$
& $0.18\pm0.18$
& $0.19\pm0.03$
\\
\hline
\end{tabular}
\end{table}