condition mean min max 0 h after light 53.806 52.2086 55.4034 4 h after light 20.1721 19.9315 20.4127 8 h after light 16.53425 14.7149 18.3536 4 h after dark 28.323099999999997 25.1608 31.4854 8 h after dark 34.49875 33.1832 35.8143 12 h after dark 41.2665 34.4565 48.0765