condition mean min max 0 h after light 0.0 0.0 0.0 4 h after light 0.01765005 0.0 0.0353001 8 h after light 0.053644700000000003 0.0364456 0.0708438 4 h after dark 0.0176512 0.0 0.0353024 8 h after dark 0.0177795 0.0 0.035559 12 h after dark 0.0174882 0.0 0.0349764