Normalised histogram of void radii in this data set (red solid line) compared to those in the mock catalogues (black dashed line). The grey band shows the standard deviation of the void size histogram in the mocks. The blue and green dotted lines show the two individual fields in this data set. The histogram of void sizes in Micheletti et al. (2014) is also plotted (blue solid line). We note that this has been renormalised to account for the change in minimum void radius is this work.