condition	mean	min	max
4 h after light	1.7	1.7	1.7
8 h after light	12.0	1.9	22.1
12 h after light	3.5	3.1	3.9
4 h after dark	12.2	8.0	16.4
8 h after dark	3.75	2.8	4.7
12 h after dark	1.45	1.2	1.7