condition	mean	min	max
4 h after light	6.613135	5.66796	7.55831
8 h after light	4.065525	3.89643	4.23462
12 h after light	4.12022	4.05336	4.18708
4 h after dark	6.31452	6.20456	6.51209
8 h after dark	6.361276666666667	5.25899	7.69
12 h after dark	6.7702366666666665	5.41976	7.80641