condition mean min max 4 h after light 0.6677465 0.545051 0.790442 8 h after light 0.34318099999999996 0.295716 0.390646 12 h after light 0.31368300000000005 0.269666 0.3577 4 h after dark 0.638906 0.606969 0.670843 8 h after dark 1.329865 1.29685 1.36288 12 h after dark 0.9890375 0.983954 0.994121