condition mean min max 4 h after light 68.7225 61.8952 75.5498 8 h after light 61.011399999999995 58.0802 63.9426 12 h after light 63.331199999999995 57.1547 69.5077 4 h after dark 68.899 57.323 80.2361 8 h after dark 80.56083333333333 70.527 88.1495 12 h after dark 77.87176666666667 69.4593 91.6036