condition mean min max 0 h after light 0.069371 0.0 0.138742 2 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.03314835 0.0 0.0662967 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0631063 0.061935 0.0642776 8 h after dark 0.1074283 0.0698966 0.14496 12 h after dark 0.0 0.0 0.0