Simulated detection fractions. Top: distribution of population fractions for simulated sources with respect to DET_LIKE_3. Simulated point sources are shown as a blue dashed line labelled PNT, simulated extended sources are shown as a light blue dash-dotted line labelled EXT, and spurious sources (e.g. not real sources in the simulations) are shown as a solid grey line labelled BKG. Bottom: distribution of population fractions for simulated hard-only sources with respect to DET_LIKE_3. Simulated point sources are shown in orange, and background sources are shown as a solid grey line labelled BKG. A solid black line at DET_LIKE_3 of 12 is shown in both panels to indicate our significant detection threshold.