condition mean min max 4 h after light 3.08736 2.80617 3.36855 8 h after light 3.8591800000000003 3.66424 4.05412 12 h after light 3.959555 3.21106 4.70805 4 h after dark 6.5795433333333335 6.18078 6.85172 8 h after dark 5.045003333333334 4.81266 5.37852 12 h after dark 4.06581 2.85785 5.02998