Number densities of VIPERS galaxies in the individual W1 and W4 fields and of CFHTLenS/VIPERS photometric redshift galaxies, as a function of redshift. The number densities of VIPERS galaxies are corrected for the survey incompleteness by weighting each galaxy in the counts by its associated inverse completeness weight w^C. The solid curve corresponds to the model n(z) used in the analysis. It was obtained by randomly sampling galaxy redshifts within their V_max (see text for details).