condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.03281675 0.0 0.131267 3 h after dark 0.0 0.0 0.0 6 h after dark 0.2532703333333333 0.13901 0.460477 9 h after dark 0.03940233333333334 0.0 0.118207 12 h after dark 0.0 0.0 0.0