condition	mean	min	max
4 h after light	2.7	2.7	2.7
8 h after light	4.35	2.3	6.4
12 h after light	1.35	1.1	1.6
4 h after dark	10.85	7.2	14.5
8 h after dark	5.4	5.0	5.8
12 h after dark	6.4	4.2	8.6