condition	mean	min	max
0 h after light	6.803585	6.39733	7.20984
4 h after light	8.443315	6.70163	10.185
8 h after light	5.40598	4.68057	6.13139
4 h after dark	6.15222	3.92687	8.37757
8 h after dark	9.09441	8.93485	9.25397
12 h after dark	9.331175	9.17907	9.48328