condition mean min max 4 h after light 9.885449999999999 6.24065 12.331 8 h after light 7.99231 3.20586 12.8621 12 h after light 8.242113333333332 6.08651 11.7387 4 h after dark 10.72879 8.68937 11.7806 8 h after dark 7.5001766666666665 6.38847 9.34927 12 h after dark 13.277566666666667 12.8873 13.4746