condition mean min max 4 h after light 4.67925 4.20385 5.15465 8 h after light 3.572155 3.44389 3.70042 12 h after light 3.34544 3.26538 3.4255 4 h after dark 4.844753333333333 4.59216 5.12707 8 h after dark 5.10775 4.91028 5.28058 12 h after dark 4.6814 4.59436 4.82854