condition	mean	min	max
4 h after light	6.2	6.2	6.2
8 h after light	13.7	1.7	25.7
12 h after light	2.0	2.0	2.0
4 h after dark	3.25	2.6	3.9
8 h after dark	19.65	16.9	22.4
12 h after dark	12.3	8.7	15.9