\begin{table}%t6
\caption{\label{tabap1}X-ray properties and radio luminosity of the whole GPS sample
discussed in this paper (Sects.~5 and 6).}
\par
%\centerline
{\small
\begin{tabular}{lcccccc} 
\hline \hline
Source name & $\log (L_{\rm 5 \ GHz}, {\rm erg \ s^{-1}})$ & $L_{{\rm 2-10 \ keV}}$ & $N_{\rm H}$ & Size & HI $\log(N_{\rm H}, {\rm cm}^{-2}$) & $\Gamma$ \\
 & & ($10^{43}$~erg~s$^{-1}$) & ($10^{20}$~cm$^{-2}$) & (kpc) & & \\ \hline
4C+00.02       & 43.1 & $0.55$$^{\dag}$           & $<$10000                & 0.220  & ...      & ... \\ 
COINSJ0111+3906& 44.0 & $7 \pm 3$        & $>$500                  & 0.033  & 21.9     & ... \\
PKS0428+20     & 43.1 & $1.4 \pm 0.6$    & $<$70                   & 0.653  & 20.5     & ... \\
PKS0500+019    & 43.6 & $50 \pm 6$       & $50 \pm^{18}_{16}$      & 0.055  & 20.8     & $1.61\pm^{0.16}_{0.15}$ \\
B30710+439     & 43.8 & $34.0 \pm 0.2$   & $51 \pm^{17}_{14}$     & 0.118  & ...      & $1.59\pm0.06$ \\
PKS0941$-$080    & 42.8 & $0.091 \pm 0.075$& $<$10000                & 0.148  & $<$20.1  & ... \\
B1031+567      & 43.4 & $2.2 \pm 0.2$    & $50 \pm 18$             & 0.206  & $<$20.1  & ... \\
4C+14.41       & 43.2 & $1.40 \pm 0.19$  & $<$16                   & 0.306  & $<$19.8  & ... \\
4C+32.44       & 43.6 & $3.7 \pm 0.4$    & $12 \pm^6_5$            & 0.247  & 19.9     & $1.7 \pm 0.2$ \\ 
PKS1345+125    & 42.7 & $7.8 \pm 1.5$    & $480 \pm 40$            & 0.166  & 20.6     & $1.1\pm^{0.7}_{0.8}$ \\
4C+62.22       & 43.6 & $30 \pm 20$      & $290 \pm^{200}_{100}$   & 0.218  & 20.3     & $1.24\pm0.17$ \\
OQ+208         & 42.2 & $>$9.0           & $>$9000                 & 0.010  & 20.3     & $2.21\pm^{0.19}_{0.14}$ \\
PKS1607+26     & 43.8 & $29.0 \pm 0.1$   & $>$6000                 & 0.262  & ...      & ... \\
PKS2008-068    & 44.5 & $ 6 \pm 2$       & $<$50                   & 0.218  & ...      & ... \\
PKS2127+04     & 44.6 & $29 \pm 4$       & $<$19                   & 0.218  & ...      &  $2.0\pm^{0.5}_{0.4}$ \\
COINSJ2355+4950& 43.0 & $1.3 \pm 0.3$    & $400 \pm^{700}_{300}$   & 0.199  & 20.5     & $1.8\pm^{1.6}_{0.9}$ \\[1mm]
\hline 
\end{tabular}}
\par
\medskip
$^{\dag}$~Extrapolated from the detection in the 0.5--2~keV band with $\Gamma = 1.61$ and $N_{\rm H} = N_{\rm H,~Gal}$. 
\end{table}