condition mean min max 0 h after light 0.996514 0.957538 1.03549 4 h after light 1.324693 0.863866 1.78552 8 h after light 0.32091000000000003 0.236412 0.405408 4 h after dark 0.431188 0.391146 0.47123 8 h after dark 0.748231 0.711982 0.78448 12 h after dark 0.631598 0.562878 0.700318