\begin{table}%t8
\caption{\label{tab:Systematics_xsecHE}High-energy biases on the W03 cross-section set.}
%\centering
\par
\begin{tabular}{lccccc} \hline\hline\noalign{\smallskip}
W03  & $K_0^{\rm best}\times 10^2$     & $\delta^{\rm best}$ &  $V_{\rm c}^{\rm best}$  &  $V_{\rm a}^{\rm best}$  & $\chi^2$/d.o.f.   \\
HE bias $x$    & (kpc$^2~$Myr$^{-1}$) &                     &  (km$\;$s$^{-1}$)   & (km$\;$s$^{-1}$)   & \\\hline
& \multicolumn{5}{c}{} \vspace{-0.25cm}\\
0:~$+0.05$          &   4.05   &   0.45   &   \dots   &   \dots   &   26.5    \vspace{0.05cm}\\  %chi2=767.463   (31)
0:~$+0.02$          &   4.06   &   0.42   &   \dots   &   \dots   &   27.7    \vspace{0.05cm}\\  %chi2=803.263   (31)
{\it 0:~}${\it +0.00}$&{\it 4.08}&{\it 0.40}&{\it \dots}&{\it \dots}& {\it 28.8} \vspace{0.05cm}\\  %chi2= 834.898 (31)
0:~$-0.02$          &   4.09   &   0.38   &   \dots   &   \dots   &   30.1    \vspace{0.05cm}\\  %chi2=872.815   (31)
0:~$-0.05$          &   4.13   &   0.34   &   \dots   &   \dots   &   32.5    \vspace{0.25cm}\\  %chi2=941.471   (31)
%
I:~$+0.05$          &   0.61   &   0.89   &   13.7    &   \dots   &   12.1    \vspace{0.05cm}\\  %chi2=337.724   (31)
I:~$+0.02$          &   0.49   &   0.91   &   13.6    &   \dots   &   11.4    \vspace{0.05cm}\\  %chi2=318.92    (31)
{\it I:~}${\it +0.00}$&{\it 0.42}&{\it 0.93}&{\it 13.5} &{\it \dots}&{\it 11.2} \vspace{0.05cm}\\  %chi2=313.47    (31)
I:~$-0.02$          &   0.35   &   0.95   &   13.4    &   \dots   &   11.2    \vspace{0.05cm}\\  %chi2=314.448   (31)
I:~$-0.05$          &   0.27   &   0.98   &   13.1    &   \dots   &   11.8    \vspace{0.25cm}\\  %chi2=329.737   (31)
%
II:~$+0.05$         &  9.20    &   0.28   &   \dots   &   78.0    &   3.26    \vspace{0.05cm}\\  %chi2=91.356    (31)
II:~$+0.02$         &  9.51    &   0.25   &   \dots   &   75.0    &   4.13    \vspace{0.05cm}\\  %chi2=115.587   (31)
{\it II:~}${\it +0.00}$&{\it 9.76}&{\it 0.23}&{\it \dots}&{\it 73.1} &{\it 4.73} \vspace{0.05cm}\\  %chi2=132.499   (31)
II:~$-0.02$         &  10.0    &   0.21   &   \dots   &   71.2    &   5.35    \vspace{0.05cm}\\  %chi2=149.669   (31)
II:~$-0.05$         &  10.4    &   0.19   &   \dots   &   68.1    &   6.27    \vspace{0.25cm}\\  %chi2=175.271   (31)
%
III:~$+0.05$        &  0.98    &   0.74   &   19.0    &   50.0    &   1.01    \vspace{0.05cm}\\  %chi2=27.2606   (31)
III:~$+0.02$        &  0.75    &   0.81   &   19.0    &   42.7    &   1.22    \vspace{0.05cm}\\  %chi2=32.8945   (31)
{\it III:~}${\it +0.00}$ &{\it 0.48}&{\it 0.86}&{\it 18.8} &{\it 38.0} &{\it 1.47} \vspace{0.05cm}\\  %chi2=39.7023   (31)
III:~$-0.02$        &  0.35    &   0.91   &   18.5    &   33.4    &   1.88    \vspace{0.05cm}\\  %chi2=50.786    (31)
III:~$-0.05$        &  0.21    &   1.01   &   17.8    &   26.6    &   2.94    \vspace{0.10cm}\\  %chi2=79.2986   (31)
% N.B.: 161 steps between 0.05 and 5000 GeV/n used
\hline
\end{tabular}
\tablefoot{Models 0, I, II, and III for $L=4$~kpc.
The various sets are obtained after multiplying the W03 set by $(E_{\rm k/n})^{x}$
above 1~GeV/n (and kept constant above 10 GeV/n), with $x=+0.05,~+0.02,~0,~-0.02,~-0.05$.
(corresponding to bottom to top curves on the right-hand side of Fig.~\ref{fig:Xsec}).}
\end{table}