condition mean min max 0 h after light 21.03835 18.9531 23.1236 4 h after light 28.40205 27.1741 29.63 8 h after light 61.596000000000004 60.5427 62.6493 4 h after dark 43.72995 42.3238 45.1361 8 h after dark 32.2761 31.433 33.1192 12 h after dark 22.87655 19.395 26.3581