condition mean min max 4 h after light 8.366544999999999 8.28117 8.45192 8 h after light 7.66663 7.48272 7.85054 12 h after light 9.95832 9.79794 10.1187 4 h after dark 10.299085 9.58747 11.0107 8 h after dark 10.902 10.7137 11.0903 12 h after dark 9.306975000000001 9.19809 9.41586