condition	mean	min	max
4 h after light	8.5	8.5	8.5
8 h after light	6.7	5.1	8.3
12 h after light	6.6499999999999995	4.6	8.7
4 h after dark	4.75	4.3	5.2
8 h after dark	5.0	4.5	5.5
12 h after dark	5.25	3.8	6.7