\begin{table}%t7 %%\centering \par \caption{\label{Observed interstellar ices}Observed interstellar ices (See text for references).} \begin{tabular}{lrrrrrrrr} \hline\hline\noalign{\smallskip} Source & $*$H$_{2}$O & $*$HCOOH & $*$CH$_{3}$OH & $*$CH$_{4}$ & $*$CO$_{2}$ & $*$CO & $*$NH$_{3}$ & $*$H$_2$CO\\ \hline \object{B1-b} & 100.00 & 3.1 & 11.2 & 3.3 & & & & \\ \object{IRAS 08242-5050} & 100.00 & 2.7 & 5.5 & 5.0 & & & & \\ \object{IRAS 15398-3359} & 100.00 & 1.9 & 10.3 & 6.0 & 35.24 & 5.63 & & \\ \object{SVS 4-5} & 100.00 & 4.6 & 25.2 & 6.1 & 30.46 & 13.09 & & \\ \object{L1014 IRS} & 100.00 & 5.4 & 3.1 & 7.1 & & & & \\ \object{W33A} & 100.00 & 5.2 & 14.7 & & 12.49 & 7.37 & 15.0 & 6.0 \\ \object{GL 2136} & 100.00 & 5.1 & 8.5 & & 13.24 & 10.19 & & \\ \object{GL 7009S} & 100.00 & 2.5 & 31.3 & & & & & \\ \object{NGC7538 IRS9} & 100.00 & & 7.5 & & & & 13.0 & 4.0 \\ \par \hline \end{tabular} \end{table}