condition mean min max 0 h after light 0.45736 0.456952 0.457768 4 h after light 0.859814 0.788427 0.931201 8 h after light 0.830835 0.814012 0.847658 4 h after dark 0.8156415 0.504883 1.1264 8 h after dark 0.621888 0.506296 0.73748 12 h after dark 0.447641 0.114085 0.781197