Fractions of single stars harbouring at least one planet of different planetary types. The top left panel shows the occurrence rate as a function of the stellar mass, adapted from Burn et al. (2021). The top right panel shows the occurrence rates as a function of the stellar metal-licity, adapted from Narang et al. (2018). The bottom row shows the joint occurrence rates obtained for each category of planet, combining the stellar mass and metallicity dependencies.