condition	mean	min	max
4 h after light	9.3	9.3	9.3
8 h after light	4.7	3.4	6.0
12 h after light	5.55	4.8	6.3
4 h after dark	5.45	5.0	5.9
8 h after dark	11.399999999999999	6.1	16.7
12 h after dark	5.75	3.8	7.7