Binned spatial maps of (from left to right): i) stars placed in either of the two mIR based diagrams from which we assess the presence of disks, ii) stars with disks, iii) the fraction of stars with disks. In the rightmost plot the gray scale follows the color-bar on the right-hand side, and the spatial bins in which the denominator of the fraction contained less than 5 stars are plotted in cyan.