Evolution of the different statistical quantities of the extracted components in the unseen area of the sky. Top: evolution of the means of the components on the left for the seven-frequency configuration and on the right for the nine-frequency configuration. Bottom: evolution of the variances of the components on the left for the seven-frequency configuration and on the right for the nine-frequency configuration. Dashed lines represent the expected values. The values for the CIB are not the same for the seven and the nine frequencies models, as we are computing the CIB at 280 GHz for the first case and the CIB at 545 GHz for the second case. Units are different for each map: $\overline{\mathrm{SZ}}$ and $\overline{z}$ are without units (y and redshift), $\overline{\mathrm{CMB}}$ is in μK, and $\overline{\mathrm{CIB}}$ is in MJy sr⁻¹.