condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 4 h after dark 0.1183885 0.0 0.236777 8 h after dark 0.0 0.0 0.0 12 h after dark 0.237202 0.23459 0.239814