condition mean min max 4 h after light 10.988578 10.693675 11.283481 8 h after light 12.08364 10.50223 13.66505 12 h after light 12.432534 12.377581 12.487487 4 h after dark 13.0236695 12.487487 13.559852 8 h after dark 14.1982745 13.818663 14.577886 12 h after dark 10.078726 10.078726 10.078726