Distribution of all the 282, 225, and 46 multi-planetary systems in the period, radius, and mass catalogue, respectively. In white is written the number of systems with any of the four observed planet multiplicities: systems with three (magenta); four (green), five (blue), and either six, seven, or eight (red) planets. Each of these systems has minimum three confirmed planets orbiting a single star, and all its planets have orbital period values. Additionally, each system in the radius catalogue contains at least three adjacent planets with radii measurements. Equivalently, each system in the mass catalogue has minimum three adjacent planets with true mass values.