\begin{table}%T2
%\centering
\par
\caption{SiO(2$-$1) and CH$_3$OH(2$_{\rm k}$--1$_{\rm k}$) luminosities of a sample of bipolar outflows. Column~2: mass of the class 0 object; {Col.~3}: luminosity of the class 0 object; {Col.~4}: SiO
luminosity integrated within the SiO emitting region of the outflow; {Col.~5}: SiO-to-CH$_3$OH
total luminosity ratio; {Col.~6}: surface density of outflows required to obtain the mean $I$(SiO) in the
northern spiral arm+nuclear ring of \object{IC~342}; {Col.~7}: references: \emph{a}:~Bachiller et~al. (\cite{bach01}); \emph{b}: Gueth et~al. (\cite{guet97}); \emph{c}: Fuente et~al. (\cite{fuen05b});
\emph{d}: Codella \& Bachiller et~al. (\cite{code99}).   
}  
\label{tabyso} 
\input{4033tab2}
\end{table}