condition	mean	min	max
4 h after light	1.0	1.0	1.0
8 h after light	1.2	0.7	1.7
12 h after light	11.4	7.2	15.6
4 h after dark	4.3	3.3	5.3
8 h after dark	3.25	2.3	4.2
12 h after dark	2.4	2.0	2.8