Median eccentricities (⟨e⟩) shown as a 1D Gaussian kernel densities for all the MMR subgroups (6 to 10). Medians for each distribution displayed in dashed lines with the same colours as the corresponding distributions. Most of the stars peak at ⟨e⟩< 0.2, except for groups 9 and 10 that have ⟨e⟩ slightly higher than 2. This is in agreement with Sales et al. (2009 see their Fig. 3) and Kordopatis et al. (2015 see their Fig. 9).