condition	mean	min	max
4 h after light	6.18674	5.80166	6.57182
8 h after light	8.19284	7.86189	8.52379
12 h after light	8.723415	8.48418	8.96265
4 h after dark	11.599699999999999	10.7661	12.4333
8 h after dark	10.10068	9.74656	10.4548
12 h after dark	8.960474999999999	8.63219	9.28876