\begin{table}%t5
\caption{Values of {\it FWHM}s obtained (in~keV) in each ISM phase separately 
and in the "global'' case; the values are given for the "standard grain 
model'' ($x_{\rm gr} = 1$), for $x_{\rm gr} = 0$ (no dust) and for $x_{\rm gr} = 10$ 
(overabundant and/or grain characteristics especially favorable for 
positron capture -- see text), respectively. For the "global (combined)''
spectrum we give {\it FWHM} values in two cases: the McKee \& Ostriker 
model with its phase densities and filling fractions, and the 
situation (results in parentheses) when the positrons are excluded 
from the cold phases. \label{tab:FWHM2}}
  $$
\begin{array}[b]{lccc}
\hline
\hline
\mbox{Phase}  & \quad \mbox{$x_{\rm gr} = 1$} & \quad \mbox{$x_{\rm gr} = 0$} & \quad \mbox{$x_{\rm gr} = 10$} \\
\hline
\noalign{\smallskip} 
\mbox{Molecular} & \quad \mbox{2.39} & \quad \mbox{2.39} & \quad \mbox{2.39}  \\
\mbox{Cold} &  \quad  \mbox{3.00} & \quad \mbox{3.00} & \quad \mbox{2.92} \\
\mbox{Warm neutral} & \quad \mbox{4.78} & \quad \mbox{4.76} & \quad \mbox{4.74}  \\
\mbox{Warm ionized} & \quad \mbox{1.02} & \quad \mbox{1.00} & \quad \mbox{1.19} \\
\mbox{Hot} & \quad \mbox{1.99} & \quad \mbox{11.0} & \quad \mbox{1.96} \\
\noalign{\smallskip}
\mbox{Combined} & \quad \mbox{2.26 (1.18)}& \quad \mbox{2.17 (1.15)} & \quad \mbox{2.17 (1.37)} \\
  \hline
\end{array}$$
\end{table}