The observed mass functions are reproduced as in Fig. 19 (blue circles, green diamonds, yellow triangles and red squares for the D1, D2, D3 and D4 fields respectively), but now with the GALFORM results as comparison. The solid line in each redshift range shows the equivalent result in each redshift range based on the GALFORM simulation results, whilst the dashed line again shows the 0.2 < z < 0.4 WIRDS mass function repeated from the first panel. The dash-dot line in the 0.8 < z < 1.0 shows the original z = 1 mass function directly from Bower et al. (2006).