Total number of maps in bins of the accretion rate, and the detection fractions of the maps where accretion features were detected with S/N ≥5σ at least 1000 au from the central star. The black line is the number of all the maps, non-detections included, with y-axis on the left. The colored lines (blue and red for F150W and F277W filters, and dashed and dotted for 2 min and 50 min exposure times, respectively) and the y-axis on the right show the successful detection fraction of the maps.