condition mean min max 4 h after light 8.07751 7.99045 8.24431 8 h after light 8.077883333333332 8.00354 8.2058 12 h after light 8.20458 8.0927 8.37655 4 h after dark 7.850553333333333 7.65163 7.971010000000001 8 h after dark 7.9562 7.85537 8.06639 12 h after dark 7.914016666666667 7.862839999999999 7.9483