From top to bottom panels: distribution of comets in (a, q), (a, cos (i_E), (a, ω_G) and (a, Ω_G) planes at four different epochs t = 250 Myr and 1, 2 and 4 Gyr. For visibility, the bin sizes are constant along any axis. However the density function is computed in number of comets per au for the perihelion distance and per au⁻¹ for the semi-major axis. The data comes from the evolution of the I0 proto-Oort cloud.