\begin{table}%t1
\caption{\label{table}Results of Voigt-profile fitting to detected lines at $z\sim1.64$ in the spectrum of \thisqsoshort.}
\small%\centerline
 {
\begin{tabular}{c c r c c c c c c}
\hline
\hline
\multirow{2}{*}{Comp.$^a$}\rule[0pt]{0pt}{10pt} & \multirow{2}{*}{$z$}       & \multicolumn{1}{c}{\multirow{2}{*}{$b$ (\kms)}}                     & \multicolumn{6}{c}{$\log N(X)$ (\cmsq)}\\
                 & &                      &   \ZnII               & \FeII\                & \SiII\                & \MgI\                 & \SI\              & CO\\
  \hline
1B    & 1.63967	& 17.8	$\pm$ 0.8	& 12.31	$\pm$ 0.03	& 13.73	$\pm$ 0.02	& 	      	        & 	      	        & 	            &       \\
2N    & 1.63992	& 6.3	$\pm$ 0.4	& 12.34	$\pm$ 0.05	& 	      	        & 	      	        & 12.85	$\pm$ 0.04	& 13.18	$\pm$ 0.02  & $\le$13.64 \\
2B    & 1.63996	& 11.4	$\pm$ 0.3	& 12.09	$\pm$ 0.11	& 14.10	$\pm$ 0.01	& 14.72	$\pm$ 0.03	& 	      	        & 	            &       \\
3N    & 1.64028	& 2.8	$\pm$ 0.6	& 12.07	$\pm$ 0.04	& 	      	        & 	      	        & 	      	        & 12.64	$\pm$ 0.05  & $\le$13.28 \\
3B    & 1.64034	& 37.6	$\pm$ 1.4	& 12.67	$\pm$ 0.04	& 14.00	$\pm$ 0.02	& 14.52	$\pm$ 0.09	& 	      	        & 	            &       \\
4N    & 1.64080	& 4.5	$\pm$ 0.4	& 12.06	$\pm$ 0.05	& 13.29	$\pm$ 0.04	& 13.96	$\pm$ 0.13	& 12.73	$\pm$ 0.03	& 13.01	$\pm$ 0.02  & $\le$13.80 \\
\multirow{2}{*}{5N}    & 1.64069	& 6.8	$\pm$ 0.3	& 12.70	$\pm$ 0.03	& 14.08	$\pm$ 0.01	& 14.45	$\pm$ 0.05	& 	      	        & 	            &       \\
                       & 1.64071	& 3.6	$\pm$ 0.4	&                	&             	        & 	      	        & 12.66	$\pm$ 0.04	& 13.10	$\pm$ 0.02  & 14.24 $\pm$ 0.20\\
6N    & 1.64083	& 3.9	$\pm$ 0.3	& 12.42	$\pm$ 0.02	& 13.67	$\pm$ 0.02	& 14.02	$\pm$ 0.10	& 12.33	$\pm$ 0.07	& 13.13	$\pm$ 0.02  & 14.34 $\pm$ 0.10\\
Total &         &                       & 13.30 $\pm$ 0.02      & 14.67 $\pm$ 0.01      & 15.13 $\pm$ 0.03      & 13.28 $\pm$ 0.02      & 13.75 $\pm$ 0.01  & 14.59 $\pm$ 0.11 $^b$\\
\hline
\end{tabular}}
\medskip
$^a$ Narrow components ($b<10~\kms$) are indicated by ``N'' while ``B'' stands for broad component ($b>10~\kms$);
$^b$~total $N($CO$)$ measured from comp.~5 and~6 only. Undetected components~(2N, 3N and 4N)    could increase this value by up to 0.1~dex (see text).
\end{table}