condition mean min max 0 h after light 0.7187645 0.539674 0.897855 4 h after light 2.065655 1.8297 2.30161 8 h after light 0.7157675 0.365585 1.06595 4 h after dark 1.255885 1.23453 1.27724 8 h after dark 1.4996649999999998 1.40763 1.5917 12 h after dark 1.054495 0.17933 1.92966