condition	mean	min	max
4 h after light	6.8	6.8	6.8
8 h after light	23.3	11.1	35.5
12 h after light	4.45	4.0	4.9
4 h after dark	6.45	3.6	9.3
8 h after dark	5.55	3.3	7.8
12 h after dark	8.1	7.7	8.5