COSEBI measurements and their best fitting model (see Table A.2). We show the best-fitting theoretical prediction with a red curve () and the gravitational lensing (GG) contribution with a blue dashed curve. A zero line is shown for reference (black dotted). The E-modes are shown in the top triangle, while the B-modes are shown in the bottom one. The predicted B-mode signal is zero. We use the first five COSEBI E-modes in this analysis, as shown here. With the labels z − ij we show that redshift bins i and j are used for the corresponding panel. The COSEBIs modes are significantly correlated (see Fig. B.1), such that their goodness-of-fit cannot be established by eye.