Detection limits vs. target number obtained with the blind test covering the whole habitable zone of each target and a random choice between ΔT_spot1 and ΔT_spot2. Circles are for a detection rate threshold of 50%, and squares for a detection rate threshold of 95%. Open circles correspond to stars outside the B-V range of our simulations. The green line is the detection limit obtained in Theia Collaboration (2017). Downward arrows mean that the detection limits are upper limits (quiet stars), while upward arrows correspond lower limits (quiet stars). Detection limits of 10 M_Earth are lower limits (saturation of the detection rate curves, see Fig. D.1).