\begin{table}%t3
  \caption{\label{table:fill}Density ($N_{\rm e}$), column depth ($h$) and filling factor ($\phi$) measurements for five moss regions shown in Fig.~\ref{em_loci}.}
\par
  %\centerline
{\small
\begin{tabular}{cc c c|c c c|c c c}
\hline\hline
\noalign{\smallskip}
&\multicolumn{9}{c}{\textbf{Before background subtraction}}\\
\cline{2-10}
&   \multicolumn{3}{c|}{\ion{Fe}{xii}} & \multicolumn{3}{c|}{\ion{Fe}{xiii}} & \multicolumn{3}{c}{\ion{Fe}{xiv}}\\
\cline{2-4}
\cline{5-7}
\cline{8-10}
& $\log~ N_{\rm e}$   & $h$ &  $\phi$   &  $\log~ N_{\rm e}$ & $h$ &  $\phi$ &  $\log~ N_{\rm e}$ &  $h$ & $\phi$ \\
& (cm$^{-3}$) &  (km) & & (cm$^{-3}$) & (km) &  &  (cm$^{-3}$) &   (km) &  \\
\hline
Region1		& $10.32^{\rm 10.39}_{10.25}$	& $140^{\rm 100}_{200}$	& 0.04 		& $9.73^{\rm 9.76}_{9.70}$		& $3000^{\rm 2700}_{3300}$		& 0.8		& $9.54^{\rm 9.60}_{9.48}$	& $5600^{\rm 4400}_{7100}$	 	& 1.4\\
Region2		& $10.32^{\rm 10.39}_{10.26}$	& $160^{\rm 120}_{210}$	& 0.04		& $9.68^{\rm 9.71}_{9.66}$		& $4200^{\rm 3800}_{4300}$		& 1.0		& $9.57^{\rm 9.62}_{9.51}$	& $6600^{\rm 5400}_{8400}$	 	& 1.6\\
Region3		& $10.22^{\rm 10.28}_{10.15}$	& $280^{\rm 220}_{390}$	& 0.07		& $9.63^{\rm 9.65}_{9.60}$		& $6400^{\rm 6000}_{6900}$		& 1.6		& $9.45^{\rm 9.50}_{9.40}$	& $14000^{\rm 11000}_{17000}$ 	& 3.5\\
Region4 	&  $9.79^{\rm 9.86}_{9.72}$		& $1200^{\rm 800}_{1500}$& 0.3		& $9.33^{\rm 9.36}_{9.30}$		& $14000^{\rm 13000}_{15000}$	& 3.5		& $9.21^{\rm 9.29}_{9.12}$	& $22000^{\rm 16000}_{33000}$ 	& 5.6\\
Region5		&  $9.83^{\rm 9.91}_{9.74}$		&  $680^{\rm 500}_{1000}$& 0.2		& $9.37^{\rm 9.41}_{9.34}$		&  $8800^{\rm 7700}_{9500}$		& 2.2		& $9.25^{\rm 9.33}_{9.15}$	& $16000^{\rm 11000}_{24000}$ 	& 3.9\\
\hline
&\multicolumn{9}{c}{\textbf{After background subtraction}}\\
\cline{2-4}
\cline{5-7}
\cline{8-10}
Region1		& $11.00^{\rm 11.08}_{10.93}$	& $8^{\rm 6}_{10}$		& 0.002		& $10.58^{\rm 10.63}_{10.54}$	& $130^{\rm 100}_{150}$			& 0.03		& $10.04^{\rm 10.08}_{10.00}$	& $720^{\rm 620}_{830} $		& 0.2\\
Region2		& $10.88^{\rm 10.95}_{10.82}$	& $15^{\rm 10}_{20}$		& 0.004		& $10.17^{\rm 10.19}_{10.14}$	& $970^{\rm 930}_{1100}$		& 0.2		&  $9.87^{\rm 9.90}_{9.83}$		& $1900^{\rm 1700}_{2200}$	& 0.5\\
Region3		& $10.60^{\rm 10.65}_{10.55}$	& $60^{\rm 50}_{70}$		& 0.01		& $9.90^{\rm 9.92}_{9.88}$		& $3200^{\rm 3000}_{3300}$		& 0.8		&  $9.62^{\rm 9.65}_{9.59}$		& $6900^{\rm 6200}_{7700}$	& 1.7\\
Region4		& $10.17^{\rm 10.22}_{10.12}$	& $230^{\rm 190}_{290}$	& 0.1		& $9.55^{\rm 9.57}_{9.53}$		& $7500^{\rm 7200}_{7900}$		& 1.9		&  $9.48^{\rm 9.52}_{9.43}$		& $7100^{\rm 6100}_{8700}$ & 1.8\\
Region5 	& $10.91^{\rm 11.00}_{10.82}$	& $7^{\rm 5}_{11}$		& 0.002		& $10.39^{\rm 10.45}_{10.34}$	& $250^{\rm 200}_{300}$			& 0.1		&  $9.71^{\rm 9.75}_{9.67}$		& $2300^{\rm 2000}_{2600}$	& 0.6 \\ 
\hline
\end{tabular}}
\tablefoot{The box labelled as BG in the top panel of Fig.~\ref{em_loci} was considered for background subtraction. The upper and lower case numbers indicate the errors.}\vspace*{-1.5mm}
\end{table}