condition	mean	min	max
4 h after light	41.0	41.0	41.0
8 h after light	56.95	54.3	59.6
12 h after light	69.3	49.6	89.0
4 h after dark	128.75	127.7	129.8
8 h after dark	139.95	88.1	191.8
12 h after dark	132.05	129.1	135.0