\begin{table}%T8
\caption{ The mean line-flux ratios of the examined
features. Indicated in the table is the mean $LF_A/LF_B$ of all sample
stars for which both A and B were detected. \label{LFratios}}
%\centering
\par
\begin{tabular}{@{}l@{}|ccccccc@{}}
\hline \hline
\multicolumn{1}{r|}{B}&
           \rotatebox[origin=c]{90}{NAN 3.4} &
           \rotatebox[origin=c]{90}{NAN 3.5} &
           \rotatebox[origin=c]{90}{PAH 6.2} &
           \rotatebox[origin=c]{90}{PAH 7.7} &
           \rotatebox[origin=c]{90}{PAH 8.6} &
           \rotatebox[origin=c]{90}{COMP 11} &
           \rotatebox[origin=c]{90}{Si 9.7} \\ 
\multicolumn{1}{l|}{A} &
                   &         &         &         &         &         &        \\
\hline
PAH 3.3 &  0.640   & 0.310   & 0.171   & 0.074   & 0.271   & 0.138   & 0.010  \\
NAN 3.4 &          & 0.662   & 0.119   & 0.060   & 0.246   & 0.044   & 0.004  \\
NAN 3.5 &          &         & 0.241   & 0.143   & 0.416   & 0.269   & 0.051  \\
PAH 6.2 &          &         &         & 0.437   & 1.430   & 0.802   & 0.051  \\
PAH 7.7 &          &         &         &         & 3.302   & 1.830   & 0.113  \\
PAH 8.6 &          &         &         &         &         & 0.443   & 0.026  \\
COMP 11 &          &         &         &         &         &         & 0.043  \\
\hline
\end{tabular}
\end{table}