condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.116842 0.0 0.249543 12 h after light 0.06734066666666667 0.0 0.202022 4 h after dark 0.0165496 0.0 0.0496488 8 h after dark 0.07444766666666668 0.0 0.223343 12 h after dark 0.23248846666666667 0.0 0.599229