condition mean min max 4 h after light 0.0608525 0.0 0.121705 8 h after light 0.08296065 0.0665462 0.0993751 12 h after light 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0529265 0.0526924 0.0531606 12 h after dark 0.0220322 0.0 0.0440644