SFR_norm vs. X-ray luminosity. The SFR_norm was estimated after excluding quiescent systems from both the X-ray and the reference galaxy catalogues (see text for more details). The results are grouped in L_X bins of 0.5 dex width and stellar mass bins. The results are colour-coded based on the redshift range (black for 0.5 < z < 1.0, blue for 1.0 < z < 1.5, and green for 1.5 < z < 2.0). Different symbols refer to different stellar mass intervals, as indicated in the legend. M_* values are in log [M_*(M_⊙)]. Median SFR_norm values are presented and the errors are calculated using bootstrap resampling. The number of sources included in each bin are shown next to each symbol.