\begin{table}%t5
%\begin{supertabular}
\caption{\label{tab5}Galactocentric distances and elemental abundances.}
%\centering
\small
\begin{tabular}{lrrrrrrr}
\hline\hline
Name& $R_{\rm G}$ [kpc]& He/H& $A$(N)& $A$(O)& $A$(Ne)& $A$(S)& $A$(Ar)\\
(1)&(2)&(3)&(4)&(5)&(6)&(7)\\
\hline
%
    PN~3m &    $10.49\pm0.177$ & $0.051\pm0.002$ 	& $7.53\pm0.11$ 	& $8.59\pm0.17$ &    $\dots$ & $6.85\pm 0.10$ & $\dots$  \\
     PN~5 &    $6.276\pm0.094$ &  $\dots$			& $7.41\pm0.06$ 	& $8.17\pm0.09$ &   $\dots$ & $6.85\pm0.06$ & $6.37\pm0.06$ \\
    PN~9m &    $7.344\pm0.156$ & $0.101\pm0.002$ 	& $7.49\pm0.13$ 	& $8.54\pm0.21$ & $7.67\pm0.12$ & $6.51\pm0.12$ & $5.76\pm0.12$ \\
   PN~15m &    $9.006\pm0.007$ &    $\dots$ 			&     $\dots$		& $8.18\pm0.16$ &    $\dots$&    $\dots$ &    $\dots$ \\
   PN~17m &    $4.858\pm0.261$ & $0.138\pm0.015$ 	& $7.59\pm0.13$ 	& $8.59\pm0.21$ &    $\dots$& $6.87\pm0.12$ &     $\dots$ \\
   PN~29m &    $12.14\pm0.415$ & $0.109\pm0.017$ 	& $7.13\pm0.05$ 	& $8.24\pm0.06$ & $7.71\pm0.05$ & $6.41\pm0.05$ &    $\dots$\\
   PN~33m &    $10.86\pm0.110$ &  $\dots$			 & $7.07\pm0.18$ 	& $7.94\pm0.28$ &    $\dots$ & $6.43\pm0.18$ &    $\dots$\\
   PN~38m &    $12.54\pm0.385$ & $0.122\pm0.061$ 	&     $\dots$		& $8.11\pm0.22$ &     $\dots$ &    $\dots$ & $6.08\pm0.13$ \\
   PN~41m &    $4.677\pm0.110$ & $0.179\pm0.063$ 	& $7.20\pm0.18$ 	& $8.11\pm0.28$ &    $\dots$ & $6.78\pm0.18$ &     $\dots$\\
   PN~45m &    $4.326\pm0.018$ & $0.078\pm0.006$ 	& $7.84\pm0.06$ 	& $8.89\pm0.09$ &    $\dots$& $6.95\pm0.06$ &     $\dots$ \\
   PN~63m &    $3.516\pm0.117$ & $0.089\pm0.002$ 	& $7.74\pm0.14$ 	& $8.62\pm0.22$ &     $\dots$& $6.86\pm0.13$ &    $\dots$\\
   PN~70m &    $4.785\pm0.084$ & $0.127\pm0.005$ 	& $7.67\pm0.18$ 	& $8.73\pm0.28$ &    $\dots$ & $6.97\pm0.18$ &     $\dots$ \\
   PN~93m &    $2.805\pm0.109$ & $0.068\pm0.003$ 	& $7.79\pm0.05$ 	& $8.51\pm0.05$ & $8.06\pm0.05$ & $7.10\pm0.05$ &  $\dots$\\
  PN~121m &    $4.119\pm0.218$ & $0.184\pm0.014$ 	& $7.66\pm 0.3$ 	& $8.81\pm 0.50$ &   $\dots$& $6.98\pm 0.30$ &$\dots$ \\
  PN~128m &    $5.339\pm0.265$ &   $\dots$ 			& $7.83\pm0.18$ 	& $8.27\pm0.28$ &    $\dots$& $7.16\pm0.18$ &    $\dots$ \\
  PN~149m &    $10.14\pm0.547$ & $0.145\pm0.018$ & $7.60\pm0.04$ 	& $8.13\pm0.04$ & $7.62\pm0.04$ & $6.48\pm0.04$ & $5.84\pm0.04$ \\
  PN~153m &    $8.381\pm0.277$ & $0.147\pm0.007$ 	& $7.40\pm0.13$ 	& $8.31\pm0.21$ & $8.04\pm0.12$ & $6.78\pm0.12$ &    $\dots$\\
  PN~157m &    $9.759\pm0.493$ & $0.201\pm0.023$ 	&   $\dots$ 		& $8.07\pm0.04$ &    $\dots$ &   $\dots$&   $\dots$\\
  PN~158m &    $10.15\pm0.525$ & $0.166\pm0.078$ 	&  $7.37\pm 0.20	$ & $7.94\pm0.29$ & $7.40\pm0.19$ & $6.91\pm0.19$ & $\dots$\\[1mm]
Average& & $0.127\pm0.045$ &  $\rm 7.58^{+0.18}_{-0.30}$&   $\rm 8.45^{+0.23}_{-0.54}$& $\rm 7.81^{+0.20}_{-0.38}$& $\rm 6.86^{+0.17}_{-0.28}$& $\rm 6.08^{+0.22}_{-0.48}$\\[1.5mm]
\hline\noalign{\smallskip}
       H~{\sc ii}~4 &    $9.076\pm0.396$ & $0.079\pm0.034$ 	& $7.15\pm0.33$ 	& $8.58\pm 0.50$ & $7.92\pm0.34$ & $6.45\pm0.33$ & $6.11\pm0.33$ \\
       H~{\sc ii}~5 &    $8.696\pm0.342$ & $0.072\pm0.021$ 	& $8.06\pm0.07$ 	& $8.87\pm0.04$ &   $\dots$ & $6.63\pm0.03$ & $5.87\pm0.03$ \\
      H~{\sc ii}~31 &    $8.648\pm0.455$ & $0.079\pm0.026$ 	& $7.60\pm0.32$ 	& $8.60\pm 0.50$ &    $\dots$& $6.87\pm0.32$ & $6.01\pm0.32$ \\
        H~{\sc ii}~72 &    $6.773\pm0.070$ & $0.086\pm0.011$ 	& $7.87\pm0.13$ 	& $8.82\pm0.22$ & $8.28\pm0.13$ & $6.79\pm0.13$ & $6.05\pm0.13$ \\
      H~{\sc ii}~79 &     8.16 $0\pm0.006$ & $0.077\pm0.020$ 	& $7.30\pm0.29$ 	& $8.26\pm0.45$ & $7.62\pm0.29$ & $6.63\pm0.29$ & $5.88\pm0.29$ \\
      H~{\sc ii}~81 &    $7.027\pm0.031$ & $0.104\pm0.037$         & $7.41\pm0.32$ 	& $8.40\pm 0.50$ & $7.73\pm0.32$ & $6.59\pm0.32$ & 5.89$\pm$0.32\\
       H~{\sc ii}~123 &    $7.762\pm0.002$ & $0.084\pm0.007$ 	& $7.40\pm0.10$ 	& $8.43\pm0.18$ & $7.68\pm0.10$ & $6.76\pm0.10$ & $6.30\pm0.10$ \\
     H~{\sc ii}~133 &    $6.721\pm0.001$ & $0.091\pm0.159$ 	& $7.90\pm0.05$ 	& $8.67\pm0.04$ & $8.19\pm0.05$ & $6.70\pm0.05$ & $6.04\pm0.05$ \\
     H~{\sc ii}~201 &     $6.750\pm0.070$ & $0.107\pm0.032$ 	& $7.63\pm0.13$ 	& $8.26\pm0.22$ & $7.73\pm0.13$ & $6.55\pm0.13$ & $5.97\pm0.13$ \\
     H~{\sc ii}~228 &    $9.849\pm0.211$ & $0.052\pm0.021$ 	& $7.41\pm0.04$ 	& $8.35\pm0.04$ & $\dots$& $6.79\pm0.04$ & $5.92\pm0.04$ \\
     H~{\sc ii}~233 &    $5.797\pm0.138$ & $0.086\pm0.043$ 	& $7.86\pm0.25$ 	& $8.50\pm 0.38$ & $\dots$&  $6.54\pm0.25$ & $\dots$\\
     H~{\sc ii}~262 &    $9.716\pm0.280$ & $0.073\pm0.017$ 	& $7.33\pm0.07$ 	& $8.32\pm0.09$ &$\dots$ & $6.73\pm0.07$ & $6.06\pm0.07$ \\
     H~{\sc ii}~325 &    $9.261\pm0.403$ & $0.081\pm0.042$         & $7.23\pm0.37$ 	& $8.18\pm 0.60$ &  $\dots$& $6.42\pm0.37$ & $5.96\pm0.37$ \\ 
     H~{\sc ii}~403 &    $9.653\pm0.493$ & $0.069\pm0.016$         & $7.46\pm0.13$ 	& $8.57\pm0.22$ &  $\dots$ & $6.87\pm0.13$ & $6.21\pm0.13$ \\[1mm] 
Average&   & $0.082\pm0.013$ & $\rm 7.63^{+0.23}_{-0.54}$& $\rm 8.54^{+0.18}_{-0.32}$& $\rm 7.95^{+0.22}_{-0.47}$& $\rm 6.69^{+0.12}_{-0.17}$& $\rm 6.04^{+0.13}_{-0.18}$\\[1.5mm]
\hline
\end{tabular}
\end{table}