condition mean min max 0 h after light 0.0886095 0.0 0.177219 4 h after light 0.0 0.0 0.0 8 h after light 0.0876655 0.0 0.175331 4 h after dark 0.2617645 0.174051 0.349478 8 h after dark 0.1745385 0.0 0.349077 12 h after dark 0.1731255 0.0 0.346251