condition	mean	min	max
0 h after light	7.88809	7.7058	8.07038
4 h after light	7.939515	6.71368	9.16535
8 h after light	6.7652	6.46088	7.06952
4 h after dark	8.665865	8.54537	8.78636
8 h after dark	11.03905	10.5978	11.4803
12 h after dark	8.815365	8.22744	9.40329