condition	mean	min	max
4 h after light	20.7198245	15.065173	26.374476
8 h after light	21.9711895	13.882849	30.05953
12 h after light	17.860455	15.557261	20.163649
4 h after dark	11.5396985	10.964437	12.11496
8 h after dark	11.497136	10.225468	12.768804
12 h after dark	12.484965	12.484965	12.484965