Population D. Schematic representation of the percentage of simulated planetary systems (500 simulations) based on two specific properties: whether they experience at least one catastrophic event (ejection, scattering, or collision), and if they are dynamically cold or hot. The number in each box is related to the percentage of systems whose combination of parameters is specified on the x- and y-axes. In the upper right corner, we show 96.4% of systems that include the 17.2% of systems that are disrupted (see text for details).