condition mean min max 3 h after light 19.7177 18.4314 21.0911 6 h after light 31.896366666666665 30.6287 33.3567 9 h after light 77.33556666666667 67.6756 91.1821 12 h after light 123.1707 37.2538 166.736 3 h after dark 170.18533333333332 154.469 189.88 6 h after dark 81.8543 77.6655 86.4519 9 h after dark 43.713699999999996 35.2088 51.4252 12 h after dark 18.634900000000002 18.0926 19.1772