Histograms of runaway star directions from 1000 different projections. Top: 2D histogram showing the 1000 projections, sorted vertically and centered horizontally by peak number of runaway stars, N_run, and wrapped around the x-axis. For every projection there is a strong peak. Looking at each row individually, a fainter peak can be seen to the right or left of the peak value. Bottom: average value of the projections (black histogram) and the range from maximum to minimum (gray area), with values given by the left axis. The dashed line shows the cumulative sum of the runaway stars per bin, with values given by the right axis.