Waiting-time distributions of bursts in the first three re-binned frequency bands (RB1–RB3, left to right). RB1 includes epochs 1–4, while RB2 and RB3 include epochs 2–4. The solid black curve shows the stacked exponential distribution using burst rates from Table H.1 for k = 1 in Equation (1). Transparent histograms indicate timescales corresponding to separations between sub-burst components of multi-component bursts.