Ratio of the output XID+ flux to the input flux vs. the input flux at 100 μm, down to the flux cut of 1 mJy. The blue line is the one-to- one correspondence. The black and green vertical dotted line corresponds to the 1σ instrument noise level of 1.4 and 3.5 mJy at 100 and 160 μm respectively. The red/green solid line is the running median at 100/160 μm. The red/green dashed lines are the 16th and 84th percentiles at 100/160 μm.