Lower-tail probabilities of the variance determined from the Commander (red), NILC (orange), SEVEM (green), and SMICA (blue) component-separated polarization maps (left) and the SEVEM-070 (light green), SEVEM-100 (dark blue), SEVEM-143 (yellow), and SEVEM-217 (magenta) frequency-cleaned maps (right) at different resolutions. The top, middle and bottom rows correspond to results evaluated with the full-mission, HM- and OE-cross-variance estimates, respectively. In this figure, small p-values would correspond to anomalously low variance.