condition	mean	min	max
4 h after light	5.30529	4.48665	5.95833
8 h after light	4.724653333333333	1.7194	6.55192
12 h after light	4.53986	2.6716	6.75776
4 h after dark	6.13805	5.16113	7.50562
8 h after dark	5.63587	4.21007	6.45738
12 h after dark	7.16102	6.10129	8.94101