Surface densities of B-dropouts vs. magnitude
V range      dN/dm/dOmega(HUDF)    dN/dm/dOmega(GOODS-N)      dN/dm/dOmega(GOODS-S)
24--25                               0.069 +/- 0.024             0.094 +/- 0.029 
25--26                               0.808 +/- 0.155             1.021 +/- 0.191 
26--26.5                             2.627 +/- 0.482             3.031 +/- 0.551 
26.5--26.75                          3.966 +/- 0.745             4.585 +/- 0.85 
26.75--27                            5.633 +/- 1.029             5.286 +/- 0.97 
27--27.5                             6.479 +/- 1.138             6.188 +/- 1.088 
25--26         0.727 +/- 0.285  
26--26.5       4.000 +/- 1.091  
26.5--27       4.727 +/- 1.227  
27--27.5       6.545 +/- 1.558  
27.5--28      12.364 +/- 2.582  
28--28.5      19.273 +/- 3.773  
28.5--29      19.818 +/- 3.867  
29--29.3      25.758 +/- 5.194  
29.3--29.624  12.065 +/- 2.755  

Total surface brightness (HUDF only): 23.7 mag/sq. arcmin at ~1400 A