Normalised histograms of the observed Galactic heights, z, Galactic-longitude component, v_l, and Galactic-latitude component, v_b, of transverse peculiar velocities (displayed as curves in the left, middle, and right panels, respectively) for 52 binary MSPs and 12 solitary MSPs (see Table B.1). The histograms have been smoothed with kernel density estimation using scipy.stats.Gaussian_kde. Each histogram is concatenated from 10 000 simulations drawn from the assumed split normal distributions for the measurements (of z, v₁ or v_b; see Table B.1).