Statistics of Gaia and MOJAVE apparent proper motion amplitude and of the differences between Gaia proper motions and the MOJAVE measurements of the apparent motion of the VLBI component (amplitude and position angle). In the middle plot of the upper row, the boxplot in pink reports the radio properties of the MOJAVE component closest to the optical centroid. The MOJAVE proper motion of sources of category C being null, these sources are not considered in the MOJAVE-related plots. In the difference plots, “All BJO” reports the statistics of the overall B, J, and O sources.