condition	mean	min	max
4 h after light	6.23285	5.27991	7.18579
8 h after light	6.42483	5.996	6.85366
12 h after light	5.630215	5.34259	5.91784
4 h after dark	9.472605	8.67891	10.2663
8 h after dark	7.358945	7.31299	7.4049
12 h after dark	6.34667	6.19051	6.50283