condition	mean	min	max
4 h after light	9.2	9.2	9.2
8 h after light	11.3	8.9	13.7
12 h after light	11.25	5.7	16.8
4 h after dark	9.8	9.4	10.2
8 h after dark	15.3	14.1	16.5
12 h after dark	11.1	10.5	11.7