condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.2193095 0.215702 0.222917 8 h after light 0.1113505 0.0 0.222701 4 h after dark 0.2157155 0.0 0.431431 8 h after dark 0.32501749999999996 0.215468 0.434567 12 h after dark 0.0 0.0 0.0