\begin{table}%t9
\par
\caption{Branching ratio comparison. $j$ is the index of
  the upper emitting level for the ratio.}\label{table.ratio-comp}
%\centerline
{
\begin{tabular}{lllllllllll}
\hline
\hline
&&\multicolumn{5}{l}{Theoretical values} &
  \multicolumn{4}{l}{Observed values} \\
$j$ &Ratio &SS$^a$ &CH$^b$ &H85$^c$&K98$^d$
   &F87$^e$ &SERTS-89$^f$ &SERTS-95$^g$ &SERTS-97$^h$&MH73$^i$ \\
\hline
7  &\lam359.8/\lam348.2 &0.25  &0.26 &0.26  &0.26  &0.26  &$0.18\pm 0.04$ &--&--&--\\
9  &\lam413.0/\lam368.2 &0.069 &0.058 &0.055 &0.065 &0.066 &$0.054\pm 0.017$ &--&--&--\\
11 &\lam321.4/\lam312.1 &0.46  &0.50 &0.48  &0.50  &0.48  &$0.38\pm 0.10$
       &--&$0.47\pm 0.13$ &--\\
12 &\lam311.6/\lam320.8 &0.13  &0.14 &0.14  &0.13  &0.14  &$0.24\pm 0.07$ 
       &--&$0.14\pm 0.07$ &--\\
14 &\lam246.2/\lam251.9 &0.52  &0.53 &0.54  &0.51  &0.53  &$0.44\pm 0.15$ 
       &-- &-- &0.60 \\
   &\lam240.7/\lam251.9 &0.22  &0.22 &0.22  &0.21  &0.21  &$0.41\pm 0.18$ 
       &-- &-- &0.47 \\
19 &\lam213.8/\lam209.6 &0.98  &0.99 &0.82  &0.94  &0.72  &$0.62\pm 0.45$ 
       &$0.44\pm 0.12$ &--&--\\
20 &\lam209.9/\lam202.0 &0.15  &0.17 &0.19  &0.16  &0.12  &-- &$0.19\pm 0.04$ 
       &--&--\\
21 &\lam204.3/\lam221.8 &0.59  &0.55 &0.43  &0.47 &0.74   &$0.93\pm 0.39$ &--&--&--\\
23 &\lam204.9/\lam201.1 &0.31  &0.29 &0.30  &0.30 &0.35 &$0.88\pm 0.40$ 
       &$0.57\pm 0.12$&-- &0.26 \\
   &\lam197.4/\lam201.1 &0.21  &0.24 &0.23  &0.22 &0.13 &-- &-- &-- &0.16 \\
\hline
\multicolumn{10}{p{15cm}}{$^a$ The SSTRUCT model.}\\
\multicolumn{10}{p{15cm}}{$^b$ The CHIANTI model.}\\
\multicolumn{10}{p{15cm}}{$^c$ \citet{huang85}.}\\
\multicolumn{10}{p{15cm}}{$^d$ \citet{kohstall98}.}\\
\multicolumn{10}{p{15cm}}{$^e$ \citet{fawcett87}.}\\
\multicolumn{10}{p{15cm}}{$^f$ \citet{thomas94}.}\\
\multicolumn{10}{p{15cm}}{$^g$ \citet{brosius98}. The SERTS-95 spectra were
  calibrated using atomic data from CHIANTI through insensitive line
  ratios, including several \ion{Fe}{xiii} ratios, and so caution must
  be used when interpreting these values.}\\
\multicolumn{10}{p{15cm}}{$^h$ \citet{brosius00}.}\\
\multicolumn{10}{p{15cm}}{$^i$ \citet{mal73}. Intensity errors on individual lines were not
  explicitly given, but relative intensities are good to 20\% or better.}
\end{tabular}}
\medskip
\end{table}