condition mean min max 0 h after light 0.2538705 0.253644 0.254097 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.624254 0.498222 0.750286 8 h after dark 0.1259565 0.0 0.251913 12 h after dark 0.247786 0.0 0.495572