\begin{table}%T6
%\centering
\par
\caption{Bias for each field and for each  magnitude
  limited sample considered in this paper, for $\overline z = 3.2$ and
  for the best fitting value of the slope.  The result marked as
  "CFDF mean'' is computed from the mean over all three fields. The
  error bars shown correspond to Poisson error bars. To account for
  our uncertainty in the underlying redshift distribution of our
  Lyman-break sources, an extra systematic error of $\pm 0.1$ for the
  whole and faint samples and of $\pm 0.2$ for the bright sample
  should be added.}
\label{tab:resultb}
\begin{tabular}{*{6}{c}}\hline \hline   
{\bf Field} & magnitude & $\gamma$ & $b$ & $b$ & $b$\\
 & cuts &  & $\Omega_{0}=1.0$, & $\Omega_{0}=0.2$, &$\Omega_{0}=0.3$,\\
& ($I_{AB}$) & & $\Omega_{\Lambda}=0.0$ & $\Omega_{\Lambda}=0.0$ &$\Omega_{\Lambda}=0.7$\\
\hline               
{\bf CFDF-14}   & 20.0--24.5 & $\rm 1.81^{+0.21}_{-0.24}$ & $\rm 4.6^{+5.2}_{-1.6}$ & $\rm 1.8^{+2.0}_{-0.6}$ & $\rm 3.2^{+3.6}_{-1.1}$ \\
          & 20.0--23.5 & $\rm 2.08^{+0.84}_{-0.66}$ & $\rm 8.7^{+92.6}_{-4.3}$ & $\rm 3.6^{+38.7}_{-1.8}$ & $\rm 6.3^{+67.5}_{-3.1}$ \\
          & 23.5--24.5 & $\rm 1.96^{+0.25}_{-0.26}$ & $\rm 3.8^{+5.3}_{-1.4}$ & $\rm 1.5^{+2.1}_{-0.6}$ & $2\rm .7^{+3.8}_{-1.0}$ \\
{\bf CFDF-22}   & 20.0--24.5 & $\rm 1.81^{+0.25}_{-0.35}$ & $\rm 5.4^{+13.7}_{-2.0}$ & $\rm 2.1^{+5.4}_{-0.8}$ & $\rm 3.7^{+9.4}_{-1.4}$ \\
{\bf CFDF-03}   & 20.0--24.5 & 1.8 & 5.5$~\pm~$0.2 & 2.1$~\pm~$0.1 & 3.8$~\pm~$0.1 \\
% &  &  &  &  &  \\
{\bf CFDF mean} & 20.0--24.5 & 1.8 & 5.1$~\pm~$0.4 & 2.0$~\pm~$0.2 & {\bf 3.5$~\pm~$0.3} \\
{\bf CFDF-14}   & 20.0--23.5 & 1.8 & 9.9$~\pm~$1.5 & 3.6$~\pm~$0.6 & 6.4$~\pm~$1.0 \\
          & 23.5--24.5 & 1.8 & 4.3$~\pm~$0.4 & 1.7$~\pm~$0.2 & 3.0$~\pm~$0.3 \\
\hline   
\end{tabular}
\end{table}