Mass enclosed within the five per cent of the virial radius (5%R_200, z) at redshifts z = 0, 1, 2, 3 and 4. We show the results obtained from each halo (red points and lines) and those inferred from the AC implementations of Blumenthal et al. (1986; blue points), and Gnedin et al. (2004; pink points), and empirical models of Abadi et al. (2010; orange points) and Pedrosa et al. (2010; green points). We also present the rms obtained from the comparison between the models and the SPH haloes.