Relative frequency of AGB‐to‐HB stars (upper panel) and double‐normalized specific frequency of the AGB stars (lower panel) as a function of the projected distance from the center, over the entire cluster extension. Horizontal gray regions in the lower panel show the double‐normalized specific frequency of HB stars used as reference population. The dashed area marks the cluster region excluded form the analysis in order to avoid spurious effects due to incompleteness of the sample.