Cumulative distributions of gap complexity. The blue lines represent “no giant” group, while the gradient and thickness colors are used to represent time from 47 to 50 Myr. The red line represent the “with giant” group. The blue and red dashed lines indicate the results without and with giants in the observed sample KGPS, respectively. All samples exclude giant from gap complexity calculations. The legend indicates the number of available samples in each sample set.