condition	mean	min	max
4 h after light	2.2761500000000003	1.95506	2.59724
8 h after light	4.37638	3.99088	4.76188
12 h after light	6.120045	5.71602	6.52407
4 h after dark	6.62737	6.08982	7.16492
8 h after dark	4.25086	4.23101	4.27071
12 h after dark	3.40182	3.24966	3.55398