condition mean min max 0 h after light 0.07585 0.0 0.1517 4 h after light 0.231443 0.0 0.462886 8 h after light 0.151981 0.149816 0.154146 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0