condition mean min max 0 h after light 9.486889999999999 9.11155 9.86223 4 h after light 5.374035 5.06885 5.67922 8 h after light 5.101675 4.76628 5.43707 4 h after dark 9.8662 9.1906 10.5418 8 h after dark 8.72436 8.57812 8.8706 12 h after dark 8.455670000000001 8.41948 8.49186