condition	mean	min	max
4 h after light	20.2543	15.3604	28.5365
8 h after light	20.77421	7.25603	33.8364
12 h after light	26.37226666666667	16.6837	37.2914
4 h after dark	26.2991	17.6905	30.7181
8 h after dark	16.9799	10.7408	21.8922
12 h after dark	10.9596	10.0988	12.2944