condition mean min max 0 h after light 1.1145550000000002 1.11356 1.11555 4 h after light 0.9312445 0.853929 1.00856 8 h after light 1.0546449999999998 1.00759 1.1017 4 h after dark 0.9133015 0.850622 0.975981 8 h after dark 0.304644 0.0 0.609288 12 h after dark 1.0972595 0.864939 1.32958