condition	mean	min	max
4 h after light	8.203555	7.02448	9.38263
8 h after light	5.836015	5.78553	5.8865
12 h after light	6.26218	6.135	6.38936
4 h after dark	8.3907	8.14279	8.77538
8 h after dark	8.329936666666667	7.80286	8.91059
12 h after dark	7.420096666666667	6.98586	8.15494