\begin{table}%t1
\caption{Overview of the velocity-integrated intensities ($\int
  T_{\rm mb}~{\rm d}v$ in K~km~s$^{-1}$) for the observed line transitions. The
  frequency is listed in GHz and the lower energy level in
  cm$^{-1}$. The integrated intensity of detected lines with a low
  S/N-ratio is given between brackets. In case of a non-detection, an
  upper limit on the integrated intensity is computed as $3\sigma
  \times$ expected linewidth, with $\sigma$ the noise on the data.  A
  ``$-$'' indicates lines that were not observed. APEX-data are reported
  in plain front, JCMT-data are given in italics.}\label{Table_overview}
\par
%\centering
\small 
{ {
\begin{tabular}{cccccccccccc }
\hline \hline
%&&&&&&&&&&& \\[-8pt]
\emph{Transition} & $^{12}$CO(2$-$1) & $^{12}$CO(3$-$2) & $^{12}$CO(4$-$3) &
$^{12}$CO(7$-$6) & $^{13}$CO(2$-$1) & $^{13}$CO(3$-$2) & $^{12}$CS(5$-$4) &
$^{12}$CS(6$-$5) & $^{12}$CS(7$-$6) & $^{12}$CS(10$-$9) & $^{12}$CS(17$-$16)\\ 
\emph{frequency} & \emph{230.538} & 345.795 & 461.040  &  806.651 & \emph{220.398} & 330.587 & \emph{244.935} & 293.912 & 342.882 & 489.759 & 832.061\\
$E_{{\rm low}}$ & \emph{3.84} & 11.54 & 23.07 & 80.74 & \emph{3.67} &
11.03 & \emph{16.34} & 24.51 & 34.32  & 75.53 & 222.15 \\
\hline
WX Psc & \emph{58.0} & 64.3 & 40.2 & 22.4 & \emph{9.9} & 11.3 &\emph{ $<$2.4} & [0.8] & 1.3 & $<$8.1 & $<$42.6\\
W Aql &  \emph{80.6} & 118.4 & 95.9 & $<$178 & \emph{4.6} & 8.1 & $-$  & 2.4 & 4.6 & $<$54.1 & $<$203 \\
II Lup & $-$ & 145.0 & 130.0 & 99.7 & $-$ & 32.5 & $-$ & 20.4 & 35.2 & $-$ & $-$ \\
V Cyg & \emph{45.6} & $-$ & $-$ & $-$ & \emph{4.2} & $-$ &  \emph{7.4} & $-$ & $-$ & $-$ & $-$\\
\hline
%&&&&&&&&&&& \\[-8pt]
\emph{Transition}  & $^{13}$CS(7$-$6) &
$^{13}$CS(10$-$9) & H$^{12}$CN(3$-$2) & H$^{12}$CN(4$-$3) & H$^{12}$CN(9$-$8)
& H$^{13}$CN(4$-$3) & SiO(5$-$4) & SiO(6$-$5) & SiO(7$-$6)  & SiO(11$-$10)& \\
\emph{frequency}   & 323.684 & 462.334 & \emph{265.886} & 354.505 &
797.433 & 345.340 & \emph{217.105} & \emph{260.518} & 303.926 & 477.504 & \\
$E_{{\rm low}}$ & 32.39 &  69.41 & \emph{8.87} & 17.74 & 106.42 &
17.28 & \emph{14.48} & \emph{21.73} & 30.42  & 79.65 & \\
\hline
WX Psc  & $<$67.4 & $<$12.7 & \emph{9.9}  & 8.9 & $<$117 & [2.6] & \emph{9.2} & \emph{11.1} & 10.4  & $<$15.0 & \\
W Aql  & $-$ & $<$13.0 & \emph{21.7} & 12.2 & [34.1] & 3.1 & \emph{7.1} & \emph{8.9} & 5.2 & 13.8 & \\
II Lup & $-$ & $-$ & $-$ & 60.7 & $-$ & 64.2 & $-$ & $-$ & 19.6  & $-$ & \\
V Cyg  & $-$ & $-$ & \emph{25.7} & $-$ & $-$ & $-$ & \emph{3.8} & \emph{5.1} & $-$ & $-$ & \\
\hline
\emph{Transition}  &
SiO(19$-$18) & SiS(12$-$11) & SiS(14$-$13) & SiS(16$-$15) & SiS(19$-$18) & SO($1_1$$-$$1_0$) &  SO($\mathit{6_5}$$-$$\mathit{5_4}$) &
SO($7_8$$-$$6_7$) &  SO($\mathit{8_9}$$-$$\mathit{8_8}$) & SO($10_{11}$$-$$10_{10}$) &  \\
\emph{frequency}   & 824.235 &
217.817 & \emph{254.102} & 290.380 & 344.778 & 286.34 &  \emph{219.949} & 340.714 &  \emph{254.573} & 336.597 & \\
$E_{{\rm low}}$   & 247.57 & 39.96 &
\emph{55.10} & 72.66 & 103.53 & 1.00 &  \emph{16.98} & 45.10 &  \emph{60.80} & 88.08& \\
\hline
WX Psc & $<$92.2 & \emph{3.2} & \emph{$<$1.2} & 5.4 & 4.8 & $<$0.9 &  \emph{1.6}
& $<$1.4 & $<$2.0 & [0.9] & \\
W Aql  & [22.3] & $-$ & $-$ & 1.2 & [3.4] & $-$ &\emph{$<$1.2} & $<$3.4 & $-$ & $-$ & \\
II Lup  & $-$ & $-$ & $-$  & $-$ & 7.8 & $-$ & $-$ & $<$4.2 & $-$ & $-$ & \\
V Cyg  & $-$ & \emph{0.9} & \emph{$<$14.8} & $-$ & $-$ & $-$ & \emph{$<$1.3} & $-$ & $-$ & $-$ & \\
\hline
\end{tabular}}}
\end{table}