condition mean min max 0 h after light 2.388785 1.73927 3.0383 4 h after light 1.9543750000000002 1.76903 2.13972 8 h after light 3.380745 3.00594 3.75555 4 h after dark 4.699255 4.26286 5.13565 8 h after dark 3.43604 2.99235 3.87973 12 h after dark 1.28858 1.06005 1.51711