condition mean min max 0 h after light 0.053967 0.0 0.107934 4 h after light 0.0532085 0.0 0.106417 8 h after light 0.054935 0.0 0.10987 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0