\begin{table}%t4
%\centering
\par
\caption{Inferred ages and thrusts of the outflow using the global
method and using the velocity ranges 2--40~\kms\ and 7--40~\kms.
The quantities are normalized to the true age and {\em molecular}
thrust of the outflow. Errors on the total
(molecular+atomic) thrust may be obtained by
multiplying the relevant numbers by~0.45 ($\eta = 0.1$) or~0.26 ($\eta = 1$).
\label{global-table}}
\begin{tabular}{ccrrll}\hline\hline
\noalign{\smallskip}
\multirow{2}{*}{$\eta$} & \multirow{2}{*}{$\alpha$} & 
\multicolumn{2}{c}{$\displaystyle\frac{t_{\rm g}}{\mbox{True age}}$} &
\multicolumn{2}{c}{$\displaystyle\frac{F_{\rm g}}{F_{\rm H_2}}$} \\
 & & (2--40) & (7--40) & (2--40) & (7--40) \\ \hline
\multirow{4}{*}{0.1} & $0^\circ$ & 22.3 & 6.8 & 0.017 & 0.0017 \\
		& $30^\circ$ & 10.1 & 3.4 & 0.055 & 0.042 \\
		& $60^\circ$ & 4.8 & 2.0 & 0.16 & 0.21 \\
		& $90^\circ$ & 1.2 & 0.5 & 0.71 & 0.93 \\ \hline
\multirow{4}{*}{1} & $0^\circ$ & 34.6 & 15.2 & 0.050 & 0.021 \\
		& $30^\circ$ & 28.8 & 11.5 & 0.052 & 0.028 \\
		& $60^\circ$ & 16.3 & 5.6 & 0.077 & 0.073 \\
		& $90^\circ$ & 2.1 & 0.9 & 0.42 & 0.50\\
		\hline
\end{tabular} 
\end{table}