condition mean min max 4 h after light 6.11658 3.24024 8.99292 8 h after light 6.25977 5.78497 6.73457 12 h after light 5.80932 4.35918 7.25946 4 h after dark 6.303893333333334 5.12355 7.61734 8 h after dark 7.01938 6.57146 7.87484 12 h after dark 7.583206666666666 7.18269 7.88516