condition mean min max 0 h after light 0.0282526 0.0 0.0565052 4 h after light 0.0 0.0 0.0 8 h after light 0.0287082 0.0 0.0574164 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0