condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.1320937 0.0861414 0.178046 8 h after light 0.08768765 0.0864386 0.0889367 4 h after dark 0.0 0.0 0.0 8 h after dark 0.04338655 0.0 0.0867731 12 h after dark 0.0853515 0.0 0.170703