condition	mean	min	max
4 h after light	2.9	2.9	2.9
8 h after light	3.8	3.0	4.6
12 h after light	2.55	2.0	3.1
4 h after dark	4.6	2.3	6.9
8 h after dark	6.75	2.2	11.3
12 h after dark	15.6	2.7	28.5