Distribution of the number of cluster candidates in each transitive association sharing members above the threshold. The height of the green bars and the numbers annotated show the total number of associations that contain N_candidate. The yellow bars display the number of associations containing N_candidate where none of the included candidates in the association is an extent-selected cluster. The dashed line shows the fraction of these associations as a function of the total amount for each N_candidate. For better visibility, we omit the 41 associations where N_candidate exceeded 20, most notably one association containing 50 overlapping candidates.