condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.2761215 0.271579 0.280664 8 h after light 0.13888335000000002 0.0908387 0.186928 4 h after dark 0.2263305 0.0 0.452661 8 h after dark 0.1819996 0.0904282 0.273571 12 h after dark 0.1355433 0.0916936 0.179393