condition mean min max 4 h after light 2.2465849999999996 2.16823 2.32494 8 h after light 1.66993 1.32816 2.0117 12 h after light 2.059265 2.00707 2.11146 4 h after dark 3.030035 2.88423 3.17584 8 h after dark 2.9958799999999997 2.88455 3.10721 12 h after dark 2.36142 2.18607 2.53677