\begin{table}%t4
\caption{\label{numbercounts}Differential number counts (in 0.5~mag bins), uncertainties and
         source detections efficiencies for each magnitude bin of galaxies in
         the $U$, $B$, and $V$ bands.}
%\centering
\par
\begin{tabular}{crrcrrcrrc}
\hline\hline
mag       &      $U$ & $\sigma_U$ & eff   &      $B$ & $\sigma_B$ & eff   &     $V$  & $\sigma_V$ & eff   \\
(AB)      & \multicolumn{2}{c}{(N~deg$^{-2}$~$(0.5~{\rm mag})^{-1}$)} & & \multicolumn{2}{c}{(N~deg$^{-2}$~$(0.5~{\rm mag})^{-1}$)} & &  \multicolumn{2}{c}{(N~deg$^{-2}$~$(0.5~{\rm mag})^{-1}$)} &        \\
\hline
17.0--17.5 &      -- &      --     & 1.000 &     19 &     19     & 1.000 &    174 &         77 & 1.000 \\
17.5--18.0 &      -- &      --     & 1.000 &      -- &      --     & 1.000 &     39 &         39 & 1.000 \\
18.0--18.5 &      -- &      --     & 1.000 &     39 &     39     & 1.000 &     19 &         19 & 1.000 \\
18.5--19.0 &      -- &      --     & 1.000 &      -- &      --     & 1.000 &    135 &         77 & 1.000 \\
19.0--19.5 &     39 &     39     & 1.000 &     58 &     39     & 1.000 &    155 &         77 & 1.000 \\
19.5--20.0 &     19 &     19     & 1.000 &     97 &     58     & 1.000 &     97 &         58 & 1.000 \\
20.0--20.5 &    116 &     58     & 1.000 &     97 &     58     & 1.000 &    174 &         77 & 1.000 \\
20.5--21.0 &     97 &     58     & 1.000 &    135 &     77     & 1.000 &    329 &        116 & 1.000 \\
21.0--21.5 &    116 &     58     & 1.000 &    135 &     77     & 1.000 &    309 &         97 & 1.000 \\
21.5--22.0 &    445 &    135     & 1.000 &    836 &    195     & 0.994 &   2359 &        367 & 1.000 \\
22.0--22.5 &   1005 &    213     & 1.000 &   1186 &    237     & 0.978 &   3600 &        502 & 0.999 \\
22.5--23.0 &   1726 &    291     & 0.997 &   2748 &    395     & 0.978 &   5826 &        729 & 0.989 \\
23.0--23.5 &   3762 &    504     & 0.997 &   5515 &    672     & 0.950 &   9933 &       1100 & 0.981 \\
23.5--24.0 &   7307 &    810     & 0.979 &  10336 &   1071     & 0.939 &  15204 &       1499 & 0.955 \\
24.0--24.5 &  12984 &   1282     & 0.950 &  17327 &   1609     & 0.925 &  25504 &       2295 & 0.915 \\
24.5--25.0 &  21650 &   1933     & 0.910 &  27021 &   2317     & 0.918 &  40249 &       3340 & 0.856 \\
25.0--25.5 &  31629 &   2671     & 0.876 &  41229 &   3298     & 0.891 &  59463 &       4564 & 0.794 \\
25.5--26.0 &  50749 &   3950     & 0.837 &  55918 &   4307     & 0.844 &  75514 &       8690 & 0.711 \\
26.0--26.5 &  66532 &   9903     & 0.714 &  80376 &  11135     & 0.757 &  97480 &      22917 & 0.525 \\
26.5--27.0 &  92452 &  27568     & 0.486 & 114551 &  31570     & 0.584 & 125436 &      54593 & 0.301 \\
27.0--27.5 & 137413 &  75439     & 0.235 & 156755 &  75783     & 0.357 & 147554 &     136349 & 0.109 \\
27.5--28.0 & 189647 & 186364     & 0.071 & 223749 & 184589     & 0.155 &      -- &          -- &     -- \\
\hline
\end{tabular}
\end{table}