condition	mean	min	max
4 h after light	8.5	8.5	8.5
8 h after light	15.7	7.1	24.3
12 h after light	8.8	6.6	11.0
4 h after dark	9.95	8.0	11.9
8 h after dark	8.2	6.5	9.9
12 h after dark	11.8	10.7	12.9