condition	mean	min	max
4 h after light	7.452345	6.61867	8.28602
8 h after light	5.059355	4.56331	5.5554
12 h after light	4.925395	4.8482	5.00259
4 h after dark	5.211296666666667	4.69695	6.13359
8 h after dark	5.61383	5.04124	5.95156
12 h after dark	6.574716666666667	5.53753	8.27176