condition mean min max 3 h after light 8.55885 5.52763 11.1766 6 h after light 9.48081 8.1178 11.1596 9 h after light 24.3763 19.4013 29.728 12 h after light 39.51415 28.3461 62.2377 3 h after dark 39.56353333333333 36.5156 44.2753 6 h after dark 25.6226 23.8111 27.3584 9 h after dark 16.154933333333332 14.6884 17.2867 12 h after dark 14.5563 12.7768 16.3358